Download or read book Monograph of the British Aphides Vol 4 Classic Reprint written by George Bowdler Buckton and published by . This book was released on 2015-08-04 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Monograph of the British Aphides, Vol. 4 On introducing this concluding volume to the reader, I tender my sincere thanks to the Members of the Council of the Ray Society for undertaking the publication of my Monograph, and for the courtesy which they have shown me in fulfilling my wishes as to the form it should assume. Prof. Helmholtz well remarks that "The materials of a monograph must be united by a logical process; and the first step is to connect like with like, and to elaborate a general conception embracing them all." Again, elsewhere, "A digest or catalogue may be likened to a good lexicon; with which almost a tyro of the present day can achieve results in the interpretation of the classics, which an Erasmus, with the erudition of a lifetime, could hardly attain." Some may perchance think that this Monograph has attained proportions unnecessarily large. The general reader, on the one hand, may take exception to its detail. The competent biologist, with more truth perhaps, may complain of omissions as well as commissions. 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 British Birds Vol 4 of 4 Classic Reprint written by Archibald Thorburn and published by Forgotten Books. This book was released on 2018-10-04 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from British Birds, Vol. 4 of 4 The female is hardly so large as the male, and although the colour in general is similar in both sexes, her crest and neck plumes are less developed than those of her mate. 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 British Birds Vol 4 Classic Reprint written by and published by Forgotten Books. This book was released on 2015-07-07 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from British Birds, Vol. 4 The year covered by our fourth volume has been marked by a steady advance rather than by any very striking event in British ornithology. The interest in the Marking Scheme continues to grow, and the recoveries already announced show excellent promise for the future. Such an inquiry must necessarily be continued for some years before results of real value can be obtained, but we now feel assured that the ringing of birds, if conducted on a scale equal to that of last year, will be the means of our gaining a considerable knowledge of the exact movements of individual birds - a subject of which we now know practically nothing. We may here again express our gratitude to those numerous readers who, by their enthusiastic co-operation, are making the scheme a success. The Crossbill irruption and the resultant nesting have again engaged the careful attention of many contributors, and never before has such a visitation been so well and thoroughly recorded. The value of a careful study of geographical races is becoming more widely recognized, and the knowledge gained by this means of the origin of a number of immigrants, as in the case of Jays, Great Tits, and Woodpeckers recorded in the pages of this volume, must surely convince the most sceptical that the subdivision of species into racial forms is of real practical value to the student of migration, apart from its undoubted interest to the evolutionist. Notes on various interesting points connected with the life-history and distribution of our birds have again shown a growth both in number and importance, and we hope that this valuable feature will continue to increase. 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 British Birds Vol 4 of 6 written by Henry O. Forbes and published by Forgotten Books. This book was released on 2018-02-05 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from British Birds, Vol. 4 of 6: With Their Nests and Eggs Nder this Order are included the Herons, and Bitterns the U Storks the Ibises and the Spoonbills As a group the Herodiones are recognized by their sharp powerful bill, generally coulter-shaped and longer than the head; their small nostrils; their long and very flexible neck; their stilt-like legs; long broad wings, and their short tail. Their toes are never fully webbed, and their feet are capable of grasping the branches of trees on which most Of them are wont to perch. The Herodiones are as a rule gregarious, breeding in colonies, and nesting generally in high trees, but Often also on the ground. The young are hatched with their eyes closed, but being naked and helpless have to be fed in the nest till fledged. In some species the young are pure white in both sexes, and at all ages; in other pairs Of the same species the male differs from the female when young, or remains Of a different colour all through life. 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 A History of British Birds Vol 4 written by F. O. Morris and published by Forgotten Books. This book was released on 2016-09-02 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A History of British Birds, Vol. 4: Containing Forty-Eight Coloured Engravings This Splendid bird is a native of the continent of Europe, and of portions of those of Africa and Asia. In the first named it is plentiful in Spain, Italy, and France, and is also found in Germany, Bavaria, Holland, and Malta, in the latter on its passage at the seasons of migration. It occurs in Persia, and Asia Minor, and in Egypt, and other parts of the northern shores of Africa. 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 Phytochemical Methods written by Jeffrey B. Harborne and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: While there are many books available on methods of organic and biochemical analysis, the majority are either primarily concerned with the application of a particular technique (e.g. paper chromatography) or have been written for an audience of chemists or for biochemists work ing mainly with animaltissues. Thus, no simple guide to modern metho ds of plant analysis exists and the purpose of the present volume is to fill this gap. It is primarily intended for students in the plant sciences, who have a botanical or a general biological background. It should also be of value to students in biochemistry, pharmacognosy, food science and 'natural products' organic chemistry. Most books on chromatography, while admirably covering the needs of research workers, tend to overwhelm the student with long lists of solvent systems and spray reagents that can be applied to each class of organic constituent. The intention here is to simplify the situation by listing only a few specially recommended techniques that have wide currency in phytochemical laboratories. Sufficient details are provided to allow the student to use the techniques for themselves and most sections contain some introductory practical experiments which can be used in classwork.
Download or read book Medical and Veterinary Entomology written by Gary R. Mullen and published by Academic Press. This book was released on 2009-04-22 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medical and Veterinary Entomology, Second Edition, has been fully updated and revised to provide the latest information on developments in entomology relating to public health and veterinary importance. Each chapter is structured with the student in mind, organized by the major headings of Taxonomy, Morphology, Life History, Behavior and Ecology, Public Health and Veterinary Importance, and Prevention and Control. This second edition includes separate chapters devoted to each of the taxonomic groups of insects and arachnids of medical or veterinary concern, including spiders, scorpions, mites, and ticks. Internationally recognized editors Mullen and Durden include extensive coverage of both medical and veterinary entomological importance. This book is designed for teaching and research faculty in medical and veterinary schools that provide a course in vector borne diseases and medical entomology; parasitologists, entomologists, and government scientists responsible for oversight and monitoring of insect vector borne diseases; and medical and veterinary school libraries and libraries at institutions with strong programs in entomology. Follows in the tradition of Herm's Medical and Veterinary Entomology The latest information on developments in entomology relating to public health and veterinary importance Two separate indexes for enhanced searchability: Taxonomic and Subject New to this edition: Three new chapters Morphological Adaptations of Parasitic Arthropods Forensic Entomology Molecular Tools in Medical and Veterinary Entomology 1700 word glossary Appendix of Arthropod-Related Viruses of Medical-Veterinary Importance Numerous new full-color images, illustrations and maps throughout
Download or read book Statistics written by Michael J. Crawley and published by John Wiley & Sons. This book was released on 2005-05-06 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer software is an essential tool for many statistical modelling and data analysis techniques, aiding in the implementation of large data sets in order to obtain useful results. R is one of the most powerful and flexible statistical software packages available, and enables the user to apply a wide variety of statistical methods ranging from simple regression to generalized linear modelling. Statistics: An Introduction using R is a clear and concise introductory textbook to statistical analysis using this powerful and free software, and follows on from the success of the author's previous best-selling title Statistical Computing. * Features step-by-step instructions that assume no mathematics, statistics or programming background, helping the non-statistician to fully understand the methodology. * Uses a series of realistic examples, developing step-wise from the simplest cases, with the emphasis on checking the assumptions (e.g. constancy of variance and normality of errors) and the adequacy of the model chosen to fit the data. * The emphasis throughout is on estimation of effect sizes and confidence intervals, rather than on hypothesis testing. * Covers the full range of statistical techniques likely to be need to analyse the data from research projects, including elementary material like t-tests and chi-squared tests, intermediate methods like regression and analysis of variance, and more advanced techniques like generalized linear modelling. * Includes numerous worked examples and exercises within each chapter. * Accompanied by a website featuring worked examples, data sets, exercises and solutions: http://www.imperial.ac.uk/bio/research/crawley/statistics Statistics: An Introduction using R is the first text to offer such a concise introduction to a broad array of statistical methods, at a level that is elementary enough to appeal to a broad range of disciplines. It is primarily aimed at undergraduate students in medicine, engineering, economics and biology - but will also appeal to postgraduates who have not previously covered this area, or wish to switch to using R.
Download or read book Principal Component Analysis written by I.T. Jolliffe and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principal component analysis is probably the oldest and best known of the It was first introduced by Pearson (1901), techniques ofmultivariate analysis. and developed independently by Hotelling (1933). Like many multivariate methods, it was not widely used until the advent of electronic computers, but it is now weIl entrenched in virtually every statistical computer package. The central idea of principal component analysis is to reduce the dimen sionality of a data set in which there are a large number of interrelated variables, while retaining as much as possible of the variation present in the data set. This reduction is achieved by transforming to a new set of variables, the principal components, which are uncorrelated, and which are ordered so that the first few retain most of the variation present in all of the original variables. Computation of the principal components reduces to the solution of an eigenvalue-eigenvector problem for a positive-semidefinite symmetrie matrix. Thus, the definition and computation of principal components are straightforward but, as will be seen, this apparently simple technique has a wide variety of different applications, as weIl as a number of different deri vations. Any feelings that principal component analysis is a narrow subject should soon be dispelled by the present book; indeed some quite broad topics which are related to principal component analysis receive no more than a brief mention in the final two chapters.
Download or read book Introduction to the Science of Sociology written by Robert Ezra Park and published by Good Press. This book was released on 2019-11-19 with total page 1534 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Introduction to the Science of Sociology" by Robert Ezra Park, E. W. Burgess. Published by Good Press. Good Press publishes a wide range of titles that encompasses every genre. From well-known classics & literary fiction and non-fiction to forgotten−or yet undiscovered gems−of world literature, we issue the books that need to be read. Each Good Press edition has been meticulously edited and formatted to boost readability for all e-readers and devices. Our goal is to produce eBooks that are user-friendly and accessible to everyone in a high-quality digital format.
Download or read book Handbook of Herbs and Spices written by K. V. Peter and published by Elsevier. This book was released on 2012-08-13 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbs and spices are among the most versatile ingredients in food processing, and alongside their sustained popularity as flavourants and colourants they are increasingly being used for their natural preservative and potential health-promoting properties. An authoritative new edition in two volumes, Handbook of herbs and spices provides a comprehensive guide to the properties, production and application of a wide variety of commercially-significant herbs and spices.Volume 1 begins with an introduction to herbs and spices, discussing their definition, trade and applications. Both the quality specifications for herbs and spices and the quality indices for spice essential oils are reviewed in detail, before the book goes on to look in depth at individual herbs and spices, ranging from basil to vanilla. Each chapter provides detailed coverage of a single herb or spice and begins by considering origins, chemical composition and classification. The cultivation, production and processing of the specific herb or spice is then discussed in detail, followed by analysis of the main uses, functional properties and toxicity.With its distinguished editor and international team of expert contributors, the two volumes of the new edition of Handbook of herbs and spices are an essential reference for manufacturers using herbs and spices in their products. They also provide valuable information for nutritionists and academic researchers. Provides a comprehensive guide to the properties, production and application of a wide variety of commercially-significant herbs and spices Begins with a discussion of the definition, trade and applications of herbs and spices Reviews the quality specifications for herbs and spices and examines the quality indices for spice essential oils
Download or read book Pesticide Resistance in Arthropods written by Richard Roush and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bruce E. Tabashnik and Richard T. Roush Pesticide resistance is an increasingly urgent worldwide problem. Resistance to one or more pesticides has been documented in more than 440 species of insects and mites. Resistance in vectors of human dise8se, particularly malaria-transmit ting mosquitoes, is a serious threat to public health in many nations. Agricultural productivity is jeopardized because of widespread resistance in crop and livestock pests. Serious resistance problems are also evident in pests of the urban environ ment, most notably cockroaches. Better understanding of pesticide resistance is needed to devise techniques for managing resistance (Le. , slowing, preventing, or reversing development of resistance in pests and promoting it in beneficial natural enemies). At the same time, resistance is a dramatic example of evolution. Knowledge of resistance can thus provide fundamental insights into evolution, genetics, physiology, and ecology. Resistance management can help to reduce the harmful effects of pesticides by decreasing rates of pesticide use and prolonging the efficacy of environmentally safe pesticides. In response to resistance problems, the concentration or frequency of pesticide applications is often increased. Effective resistance management would reduce this type of increased pesticide use. Improved monitoring of resis tance would also decrease the number of ineffective pesticide applications that are made when a resistance problem exists but has not been diagnosed. Resistance often leads to replacement of one pesticide with another that is more expensive and less compatible with alternative controls.
Download or read book Field Guide to Common Western Grasshoppers written by Robert E. Pfadt and published by . This book was released on 1994 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cultivator Country Gentleman written by and published by . This book was released on 1888 with total page 996 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Basic Techniques for Observing and Studying Moths Butterflies written by Dave Winter and published by . This book was released on 2000 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of Caves and Karst Science written by John Gunn and published by Routledge. This book was released on 2004-08-02 with total page 1971 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Caves and Karst Science contains 350 alphabetically arranged entries. The topics include cave and karst geoscience, cave archaeology and human use of caves, art in caves, hydrology and groundwater, cave and karst history, and conservation and management. The Encyclopedia is extensively illustrated with photographs, maps, diagrams, and tables, and has thematic content lists and a comprehensive index to facilitate searching and browsing.
Download or read book The Butterfly Book written by William Jacob Holland and published by . This book was released on 1903 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:
