The digital edition of all books may be viewed on our website before purchase. Excerpt from Journal of Applied Microscopy, 1900, Vol. 3 (Classic Reprint)
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Journal of Applied Microscopy. VOLUME III. JANUARY, 1900. NUMBER 1T he American Society of Naturalists. The 18th annual meeting of the American Society of Naturalists met at New Haven, Conn., December 27th, 28th, and 29th. Several other scientific societies met at the same time, and in all there were between 400 and 500 members assembled. The sessions of the American Naturalists opened on Wednesday morning with the different sections in separate meetings. The American Morphological Society met in the Peabody Museum, Prof. Conklin of the University of Pennsylvania being chairman. The announcement was first made of the action taken by the Western members of the association, in forming at this time a Western branch of the American Morphological Society. This organization held its first meeting in Chicago during the last week of December, and is regularly accepted as a Western branch of the organization. While regretting the act of separation, the need for such a step is apparent when the meetings are held so uniformly in the East. Dr. C. S. Minot gave a paper on The Development and Morphology of the Vertebral Column. It was most interesting. He showed that in the pig and rabbit there is cartilagenous continuity at first, the whole axis being an unsegmented rod and rising by a series of cornifications; this rod the author designates as the chondrostyle. By increase in size the chondro-craniuih arises, the disappearance of the muscular segments in the head region causing the enlargement. Later a segmentation of this primitive rod appears and the final ossification takes place from centers having no morphological significance; these centers are for histogenic convenience purely. Dr. Parker reported an interesting study on the relation between the number of mammary glands in the pig and the number of young born at any one time, also a comparison between the number
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Paperback. Etat : New. Print on Demand. Journey through the diverse and complex world of pteridophytes alongside this comprehensive guide. Delving into their biology, morphology, and ecology, this book illuminates the unique attributes of these ancient and captivating plants. Encompassing the breadth of the pteridophyte kingdom, the author explores the life cycle, anatomy, and reproductive strategies of ferns, fern allies, horsetails, and club mosses. With meticulous detail, the author unveils the intricate structures and adaptations that have allowed these plants to thrive for millions of years. The book's insights extend beyond mere descriptions, delving into the evolutionary relationships and phylogenetic significance of pteridophytes. The author draws connections to the broader plant kingdom, situating these fascinating organisms within the grand tapestry of plant life. Through its thorough analysis and engaging prose, this book provides a profound understanding of pteridophytes, revealing the ecological roles they play, the niches they occupy, and the beauty they bring to our natural world. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. N° de réf. du vendeur 9780282967000_0
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