{ "item_title" : "Studies In The Development Of Crinoids (1920)", "item_author" : [" Theodor Mortensen "], "item_description" : "Studies in the Development of Crinoids is a scientific book written by Theodor Mortensen and first published in 1920. The book is a comprehensive study of the development of crinoids, a type of marine animal that belongs to the phylum Echinodermata. Mortensen's research focuses on the embryonic and larval stages of crinoids, as well as their growth and reproduction. The book is divided into several chapters, each of which covers a specific aspect of crinoid development, such as the formation of the body cavity, the nervous system, and the digestive system. Mortensen's work is based on extensive observations and experiments, and he provides detailed descriptions and illustrations of the various stages of crinoid development. The book is considered a classic in the field of marine biology and remains an important reference for researchers studying crinoids today.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers2.booksamillion.com/covers/bam/1/12/071/656/112071656X_b.jpg", "price_data" : { "retail_price" : "23.95", "online_price" : "23.95", "our_price" : "23.95", "club_price" : "23.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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