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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 w...

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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 w...

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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 ...

Excerpt from Polyembryonic Development in Tatusia NovemcinctaThe development of more than one individual from a single egg while not a rare phenomenon among animals, is nevertheless of much biological interest. It has become customary to classify such types of development as asexual or agamic reproduction, but obviously this term has come to include a variety of developmental phenomena, which are exhibited in animals ranging from the Protozoa ...

Excerpt from Gastrulation in the Pigeon's Egg, a Morphological and Experimental Study: A Dissertation Submitted to the Faculty of the Ogden Graduate School of Science in Candidacy for the Degree of Doctor of Philosophy, Department of ZoologyBefore a complete history of the early development of the bird can be written, therefore, it is necessary to give a detailed account, not only of gastrulation itself, but also of the stages preceding and im...

Excerpt from Gastrulation in the Pigeon's Egg, a Morphological and Experimental Study: A Dissertation Submitted to the Faculty of the Ogden Graduate School of Science in Candidacy for the Degree of Doctor of Philosophy, Department of ZoologyBefore a complete history of the early development of the bird can be written, therefore, it is necessary to give a detailed account, not only of gastrulation itself, but also of the stages preceding and im...

This is a pre-1923 historical reproduction that was curated for quality. Quality assurance was conducted on each of these books in an attempt to remove books with imperfections introduced by the digitization process. Though we have made best efforts - the books may have occasional errors that do not impede the reading experience. We believe this work is culturally important and have elected to bring the book back into print as part of our cont...