Download or read book The American Monthly Microscopical Journal Volume 21 written by Hardpress and published by Hardpress Publishing. This book was released on 2013-12 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Download or read book The American Monthly Microscopical Journal Vol 21 written by and published by . This book was released on 2015-07-26 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, Vol. 21: For 1900 It is now some five years since I first began to make experiments with a view to finding out how it might be possible, without staining, to cause an object and its background to appear of different colors, and so secure a greater contrast than usual. Up to the present I have found three different ways by which we can make uncolored objects assume any color we wish, and our background any other color. In many circumstances we can also make definite parts of objects themselves assume different colors - if so desired. These effects may be produced so simply that any amateur may make many of the experiments himself at the cost of a few cents. In all microscopes fitted with a condenser in the substage, there is, underneath the condenser lenses, a ring or some form of holder to take stops for dark-ground illumination. Now let us cut out a disc of red gelatine (such as is used for crackers) to fit this ring, then punch a hole in the centre about a third of its diameter, and stick over the hole a piece of blue gelatine of the same size (fig. la). Then we place this color disc in the holder under the condenser, and use it in the same way as we would use the dark-ground stop. We will suppose we are using a 1" objective. The result to those who have not seen it before will be astonishing. The objects, for instance a slide of Polycystina, or some living Rotifers, will appear perfectly red, and the background perfectly blue. The great contrast throws the objects up in a most striking manner. Of course, if we wish to vary our colors, all we have to do is to vary the colors of the gelatine; a yellow disc with a blue centre will show the objects yellow on a blue ground, an uncolored disc with a green centre (fig, 1 b) will show the object white or whatever may be its natural color on a green background, and so forth. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Monthly Microscopical Journal Vol 15 written by and published by Forgotten Books. This book was released on 2018-02-14 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, Vol. 15: Containing Contributions to Biology, for 1894 The bottles must not be shaked very much when they are taken out of the ice box as the cork might come off and the contents be infected from the air. The cork should be lifted cautiously, and a glass rod dipped down to the bottom of the bottle. When it has been taken out again rapidly, the drop hanging at its end is placed on a slide a cover is put over it, and we have now a sample ready for microscopic examination. Before entering upon the various organisms which might come under observation, it ought to be remem bered that drawings of everything seen should be put down in the note book. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Monthly Microscopical Journal written by Romyn Hitchcock and published by . This book was released on 1880 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The American Monthly Microscopical Journal V 21 1900 written by Anonymous and published by Legare Street Press. This book was released on 2021-09-09 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The American Monthly Microscopical Journal written by and published by . This book was released on 1882 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The American Monthly Microscopical Journal 1897 Vol 18 written by Romyn Hitchcock and published by Forgotten Books. This book was released on 2018-02-17 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, 1897, Vol. 18: Containing Contributions to Biology While the idea of the arrangement in the experiment below detailed is suggested from a study of the Abb' form of apertometer, it is essentially different in half the technique. For the benefit of those who are not familiar with the instrument and in the hope that I may make the proposed modification plainer, it may not be amiss to attempt a short explanation of its working, particularly as this is not done in the Zeiss catalogue. It consists essentially of (a) an auxiliary objective and (b) the plate glass semicircular and prismatic disc. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Monthly Microscopical Journal Volume 10 written by Hardpress and published by Hardpress Publishing. This book was released on 2013-12 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Download or read book The American Monthly Microscopical Journal Vol 5 Classic Reprint written by Rimyn Hichcock and published by Forgotten Books. This book was released on 2019-02-19 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, Vol. 5 After a life of constant activity and conscientious devotion to his work, Mr. Tolles has left behind him noth ing but well-earned fame. His mem ory will live fresh in the thoughts of all who knew him, and after the pres ent generation has passed away there will still be the results of his earnest, thoughtful life to make his fame eu dure. His has been a life worth liv ing, and we trust his reward is great. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Monthly Microscopical Journal Volume 17 written by Hardpress and published by Hardpress Publishing. This book was released on 2013-12 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

Download or read book The American Monthly Microscopical Journal written by Henry Leslie Osborn and published by Wentworth Press. This book was released on 2019-03-15 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The American Monthly Microscopical Journal Vol 10 written by and published by . This book was released on 2015-06-29 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, Vol. 10: Containing Contributions to Biology Cover each tumbler with paper to keep out dust but to let in air. Put them away, a set of three in a moist dark place, a set of three in a moist light place. In the pure water, whether in the dark or the light place, two or three days will have produced no change. In the syrup or the cake, from both places, spots of green will have appeared upon the surface. Therefore, mould grows in the dark as well as in the light, and will not grow in water containing no organic matter. In similar ways it may be shown that mould grows well on meat broth and other watery media; that it grows faster in warm places and slower in cold places. 2. Examination with Low Power. - Upon the tip of a needle catch the smallest possible speck of mould, add a drop of water, cover it and place under the low power. There will perhaps appear some very fine threads, but mainly a great dimness with some very dark curved lines. This mount is a failure, proving that water is not a universal mounting medium. That might have been suspected from the water not moistening the film when first tried. Begin again with the needle, and now use alcohol upon the slide. When viewed under the microscope it will appear that the mould is made up of fibres matted together. These will show still better under the high powers. Before using them, mount a new slide in alcohol, carefully teasing the speck of mould before covering it. To tease it, take a needle in each hand, hold down the speck with one needle and pull the mould away with the other one. This separates the fibres for easier inspection. As the alcohol evaporates rapidly meanwhile, some more must be added from time to time, getting it under the cover with a pipette. 3. Under High Power. - The teased speck now appears to be a great complex of fine wavy threads. They make up the large part of the mould, and are called Hyphae (webs) because of their being matted and woven together. These are of two kinds: - (1.) which run indefinitely, many having no cross partitions; (2) which are broken by transverse joints and which terminate in branches tipped with small spheres. Besides these two kinds of hyphae numerous small spheres called conidia will be found in the mount. The hyphae Sand conidia together constitute the mould. The next question is, how are they put together. If a mould growing on a fluid-like broth be carefully examined one can see that it consists of a coat or scum which floats on the fluid, and that from this, called the mycelium hyphae carrying the dust before noticed are borne aloft into the air. These are invisible to the naked eye, but careful examination of bits caught with the needle from such a film convinces you that there are two kinds of hyphae, those of the mycelium and others arising from them into the air. 4. The Mycelial Hyphae. - A single thread from the complex, under medium power, is illustrated in figure i of the plate. Observe the long and narrow, flexuous, and parallel-sided thread or hyphae; that it branches frequently; that these branches are of equal diameter with the main stem; that the stem is not empty but contains something, and that the stem is one continuous tube through all its length and not broken by subdividing cross-walls. The older mycelial hyphae are not one single tube, but, like the aerial hyphae, are transversely divided. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com"

Download or read book The American Monthly Microscopical Journal written by Romyn Hitchcock and published by Wentworth Press. This book was released on 2019-03-16 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The American Monthly Microscopical Journal Vol 18 written by UNKNOWN. AUTHOR and published by Forgotten Books. This book was released on 2015-06-27 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, Vol. 18: Containing Contributions to Biology; For 1897 Owing to the high death rate of these Indians from tuberculosis, he became interested in their vital statistics and published a paper in the Boston Medical and Surgical Journal entitled "The Vital Statistics of an Apache Indian Community" in which their statistics for five years were compiled, and which is of interest as probably being the only accurate vital statistics of an Indian community ever published. From New Orleans, Dr. Borden was transferred to Fort Adams, Newport, Rhode Island, and from there to his present station, Fort Snelling, near St. Paul, Minnesota. Dr. Borden first began work in Microscopy when attending his first course of medical lectures. At that time a three years graded course of study and practical work in histology and patholog were required but in few of the medical colleges of the United States of which the Columbian University was one, and as he became interested in microscopical work, the graded course gave him more time to follow his studies in that line than was available to the average medical student. After entering the Medical Department of the Army he continued his microscopical work and soon began work in photomicrography. He is the author of a number of monographs on subjects connected with general and military medicine, histology, microscopical technique, photomicrography, and photography, and he is a member of the Associations of Military Surgeons of the United States, and a Fellow of the Royal Microscopical Society of England. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Monthly Microscopical Journal Volumes 20 21 written by Anonymous and published by Palala Press. This book was released on 2015-12-07 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The American Monthly Microscopical Journal 1886 Vol 7 Classic Reprint written by Romyn Hitchcock and published by Forgotten Books. This book was released on 2018-03-13 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, 1886, Vol. 7 Obelisk In Central Park, destruction of 37 Objective, a new, H. R. Spencer Co. -57 and ocular, new 1 76 Objectives and oculars, the new 88 appochromatic, and eye-pieces 214 appochromatic, C. Zeiss 231 recent improvement in micro scopic, Romyn Hitchcock 190 the benefits of improvements in. 173 Objects for mounting 18 Oculars, the new objectives and 88 appochromatic objectives and eye-pieces 214 Parasite of porcellio, a, W. F. Durand 161 Parasites in domestic fowls, internal. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The American Monthly Microscopical Journal Vol 12 written by UNKNOWN. AUTHOR and published by Forgotten Books. This book was released on 2015-07-20 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The American Monthly Microscopical Journal, Vol. 12: Containing Contributions to Biology, for 1891 Nor do the valves separate along the raphe or median line, but along the line of junction or suture. If the reader will turn over a page or two to the conspectus, he will see it stated by H. L. Smith, of Tribe I, Raphidieae, for example: "Frustules, mostly bacillar in s. v., always with a distinct raphe on one or both valves." (Italics mine.) Thus the two statements do not agree, and that on p. x will be likely to give the student a very different idea of what is meant by the raphe. But to return to our article. The trouble has all come, in my opinion, from calling the inner portion of the valve a hoop at all. For it suggests at once a barrel-hoop, something which is free at both edges from that which it encloses; which is not usually the case with the diatom hoop, to say the least. It is a misleading term, and is bound to confuse the student. It would be much better, therefore, it seems to me, to drop it altogether, or to speak of this piece as that portion of the membrane of each valve which when separated from the valve has the shape of a hoop. For as long as it is attached to the valve it is not a hoop, but the continuation of the valve itself. Finding this portion, however, at times detached, and shaped like a hoop, observers have thought there was only one hoop to each frustule, and that it bound the two valves together, whereas the truth is that there is a so-called hoop to each valve, and the hoops found in settlings of the Diatomaceae did not come each from a frustule but each from a valve, that is, two from each frustule. (There may be a few exceptions, but in my opinion the above will hold as a general statement.) Now, I am inclined to believe that very few amateurs have had the occular demonstration of this fact. Having to write upon the subject, and finding it impossible to reconcile the figures with what Carpenter said, I went to my slides again, and with the binocular, and almost the first peep at Isthmia showed me that the drawings were faulty in representing the upper and lower edges of the two valves as continuous lines instead of broken ones. And then I took down Schmidt's plates and the whole thing was as clear as day. And my advice to the student is to do the same thing: to pick out all his slides of Isthmia, Biddulphia, and Triceratium, and using the binocular, look sharp at the upper and lower edges of the hoop, and he will soon see that each is not one continuous line, but is formed by two lines, one of which is inside the other. And then if he is fortunate he will find some frustules where the valves have partly separated, and he will find that each valve has its band or hoop, and that it forms one continuous piece with the valve. And when he has done this he will have done something that is better than resolving Amphipleura, for he will have gained a definite idea of the structure of the diatom frustule. And this is a point that cannot be too strongly insisted upon, since even the Micrographic Dictionary has gone through edition after edition without stating or figuring the matter correctly. The first thing then for the student to do is to get a correct idea of the way the two valves are put together, and to do this he must not rely upon the figures in the Micrographic or in Carpenter, but study carefully the actual diatoms with the binocular. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com"