Download or read book Entomologica Americana written by and published by . This book was released on 1886 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entomologica Americana 1890 Vol 6 Classic Reprint written by Brooklyn Entomological Society and published by Forgotten Books. This book was released on 2018-02-14 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Entomologica Americana, 1890, Vol. 6 A small number of the States of the Union had employed their State entomologists for some years past, and Canada her's since 1884. All of these officers had striven hard to do good and useful work in the vast field which lay before them. Recently, however, a great impulse has been given to practical science in all lines byythe very important Hatch Experiment Station Act, which was passed by Congress in 1888. This Act provides that a sum of Should be annually set aside for the purpose of carrying on scientific agricultural experiments in every State of the Union. In conse quence of this Act there have already been organized Experimental Stations, twenty-seven of which have entomologists on their staffs, and these officers have already issued much valuable practical in formation in the shape of bulletins to the farmers of their respective States. The operation of injurious insects are such an important factor in the success or failure of all crops grown, and the recogni tion of that fact is now becoming so wide-spread amongst the edu cated agricultural classes, that before long it is beyond question that the directors of the other Stations will see the advisability of adding an entomologist to their staff. The result of this will be that we Shall have in North America a large number of men specially trained for the work they have undertaken, with sufficient time and means at their disposal for carrying out any experiments which may be necessary. Surely, under such circumstances important results must follow. They-all have the same object in view - the discovery, as soon as possible, of practical - that is, efficient, simple and cheap -remedies for the various injurious insects which destroy produce. The work of all these students will, of course, have to be carried on independently, in widely separated localities, and a fact which will give special value to their labors will be, that similar experiments will be carried out carefully and scientifically under differing circum stances and with varying climatic conditions. 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 Methods for Collection and Analysis of Aquatic Biological and Microbiological Samples written by and published by . This book was released on 1989 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Entomology Current Literature written by and published by . This book was released on 1936 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transactions of the American Entomological Society written by American Entomological Society and published by . This book was released on 1892 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Lepidopterorum Catalogus written by Poole and published by CRC Press. This book was released on 1989-01-01 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The noctuidae of the world, a family with numerous important agricultural pests, comprises about a third of the entire order Lepidoptera. This new three-volume set is the first complete catalog for the world. About 38,000 named species (including known synonyms) are listed alphabetically under each genus name in over 1,000 pages of text. Genera area also listed alphabetically, but subfamily affiliations are noted for each of the valid names to enable users to segregate genera by subfamily. Valid names are noted in boldface. Synonyms are listed for each genus and species; the species synonyms are also listed alphabetically among the valid names, thus enabling users to make two kinds of searches in the text as well as in the index. The catalog provides citation data on all described names (other than infraspecific names), with references cited in the compete bibliography at the end. Reference is also made to more important papers on the biology, larvae, host plants, and illustrations for each species, again with full titles noted in the bibliography. The main host plants for each species, where known, are listed under each. Details of holotypes, where known, are also noted. The bibliography has entries for approximately 4,400 papers.
Download or read book Techniques of Water resources Investigations of the United States Geological Survey written by and published by . This book was released on 1987 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collected Papers written by Herbert Ruckes and published by . This book was released on 1919 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the U S Department of Agriculture written by and published by . This book was released on 1922 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manufacturing and Laboratory Tests to Produce an Improved Cotton Airplane Fabric written by Brayton Howard Ransom and published by . This book was released on 1923 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department Bulletin written by United States. Dept. of Agriculture and published by . This book was released on 1923 with total page 992 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Illustrated Catalog of the Neotropic Arctiinae Types in the United States National Museum Lepidoptera Arctiidae written by Allan Watson and published by . This book was released on 1971 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hairy vetch Seed Production in the United States written by Leonard Wheeler Kephart and published by . This book was released on 1923 with total page 976 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by California State Library and published by . This book was released on 1890 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Revision of the Species of Pinophilus Gravenhorst Coleoptera Staphylinidae of America North of Mexico written by Neal R. Abarbanell and published by . This book was released on 1989 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Grapevine Looper written by Dwight Isely and published by . This book was released on 1920 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
