Product Description
This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone! ... Read more

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A classic first edition work, published in 1898 in London, that thoroughly covers fundamental concepts and proceses employed in the theory of functions. Very scarce ... Read more

Product Description
This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone! ... Read more

Product Description
This scarce antiquarian book is a selection from Kessinger Publishing's Legacy Reprint Series. Due to its age, it may contain imperfections such as marks, notations, marginalia and flawed pages. Because we believe this work is culturally important, we have made it available as part of our commitment to protecting, preserving, and promoting the world's literature. Kessinger Publishing is the place to find hundreds of thousands of rare and hard-to-find books with something of interest for everyone! ... Read more

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Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free.This is an OCR edition with typos.Excerpt from book:MIGRATION OF THE BIRDS.Of the migration of the birds of our region, depending as it does almost entirely upon the weather conditions, little more can be said beyond the individual reports of arrival and departure. This is especially true of the insect-feeding birds which are very sensitive and deeply feel all sudden changes of temperature. They are "perfect barometers in that respect." Some years the migration of the birds is greatly impeded by severe or variable weather, and in these years quite large numbers of migrant birds have been destroyed by sudden changes to cold and stormy weather from a fair and warmer atmosphere, which has attracted the birds. The interesting Bluebirds appear usually about the middle of March, but it was my pleasure to observe one as early as February 22, and Mr. Benjamin T. Gault heard one calling at Glen Ellyn, not far west of Chicago, on February 28, 1896.The height of migration of the Passeres in our area seems to be from the first to the tenth of May in the spring, and about the middle of September in the fall. It will be of interest to note the height of migration during eight years, from 1893 to 1900, as recorded by Mr. Gault.at Glen Ellyn, Illinois. His record is as follows, and is the result of his observations of the vireos, the warblers, and the smaller thrushes used as an index or basis to mark the height of the spring migration season:1893 May 12 to 14 inclusive1894 May 14 to 16 inclusive1895 May 19 to 23 inclusive1896 May 6 to 12 inclusive1897 May 8 to 15 inclusive1898 ,. .May 13 to 20 inclusive1899 May II to 19 inclusive1900 May 15 to 19 inclusiveThe maritime birds straggle through our area in the spring from April to June. It is a rather strange fact that late in May and in June there may some... ... Read more