. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. ^^^oai. PREFACE TO FIRST EDITION This book is a plain account of the development of the never- failing resource of the embryologist, the chick. It has been neces- sary to fill certain gaps in our knowledge of the development of the chick by descriptions of other birds. But the account does not go beyond the class Aves, and it applies exclusively to the chick except where there is specific statement to the contrary. Projected chapters on the integument, muscular sys- tem, physiology of development,
. The development of the chick : an introduction to embryology. Embryology; Chickens -- Embryos. ^^^oai. PREFACE TO FIRST EDITION This book is a plain account of the development of the never- failing resource of the embryologist, the chick. It has been neces- sary to fill certain gaps in our knowledge of the development of the chick by descriptions of other birds. But the account does not go beyond the class Aves, and it applies exclusively to the chick except where there is specific statement to the contrary. Projected chapters on the integument, muscular sys- tem, physiology of development, teratology, and history of the subject have been omitted, as the book seemed to be already sufficiently long. The account has been written directly from the material in almost every part, and it has involved some special investigations, particularly on the early development undertaken by Doctor Mary Blount and Doctor J. T. Patterson, to whom acknowledgments are due for permission to incor- porate their results before full publication by the authors. As the book is meant for the use of beginners in embryology, refer- ences to authors are usually omitted except where the account is based directly on the description of a single investigator. A fairly full list of original sources is published as an appendix. Figures borrowed from other publications are credited in the legends to the figures. The majority of the illustrations are from original preparations of the author: Figures 46, 48, 50, 51, 52, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 71, 72, 73, 74, 75, 99, 105 and 106 were drawn by Mr. K. Hayashi; the remainder of the original drawings were executed by Mr. Kenji Toda. The photographs in Figures 118, 119, 120, 168, 181, 182, 189, 194, 197, and 231 are the work of Mr. Willard C. Green. Some of the figures may be studied with advantage for points not described in the text. Acknowledgments are also due my colleague. Professor W. L. Tower for much assistance, and to Doctor Roy L. M
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Keywords: ., bookauthorlilliefrankrat, bookcentury1900, booksubjectembryology
