Surface frank macy (80 résultats)

Etat : New.

Etat : New.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

Etat : New. pp. 356.

Etat : New. pp. 356.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

PAP. Etat : New. New Book. Shipped from UK. Established seller since 2000.

PF. Etat : New.

Etat : New. pp. 356.

Etat : New.

HRD. Etat : New. New Book. Shipped from UK. Established seller since 2000.

HRD. Etat : New. New Book. Shipped from UK. Established seller since 2000.

Etat : New.

Etat : New.

Etat : New. In.

PF. Etat : New.

HRD. Etat : New. New Book. Shipped from UK. Established seller since 2000.

HRD. Etat : New. New Book. Shipped from UK. Established seller since 2000.

Etat : New. In.

Taschenbuch. Etat : Neu. Neuware - 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 is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface.We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.…

Paperback. Etat : New. Print on Demand. This book examines how the relationship between the gonads and somatic secondary sexual character develops in cows with cystic degeneration of the ovaries. The author presents a case study of a cow that gradually assumed male secondary sexual character traits after failing to produce milk or become pregnant. The author posits that their findings contribute to a growing body of evidence suggesting that the corpus luteum plays a significant role in maintaining the female secondary sexual characteristics in mammals. Ultimately, this book will be of interest to those seeking a deeper understanding of how internal sex organs influence external characteristics in mammals. Its detailed analysis of a unique case study provides fresh insights into this topic for scholars and veterinary professionals. 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.…

Paperback. Etat : New. Print on Demand. This book details a simple and reliable method for recording the pedigrees of guinea pigs and rabbits. The author provides a thorough overview of existing pedigree systems and explains why the herein described system is vastly superior when it comes to maintaining the pedigrees of these animals. This text introduces a system of marking the animals that eliminates the need for descriptions of individual color markings, potentially a very time-consuming process. The author further introduces a two-form pedigree record system, one form for individual descriptions, and the other for mating records. The author provides explanations and examples for each form. The book concludes with a useful index system to aid in tracking each animal's genealogy. 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.…

Paperback. Etat : New. Print on Demand. This book provides an examination of the microscopic anatomy of the oviduct in domestic hens, including the funnel, albumen secreting region, isthmus, uterus, and vagina. The author explores the primary and secondary folds of the epithelial lining, as well as the tubular glands found within the albumen secreting region. Additionally, the work delves into the presence of unicellular glands in the oviduct's epithelium. The text offers a detailed analysis of the muscular layers and connective tissues, noting variations in their structure throughout different regions of the oviduct. The book concludes by discussing the histological differences between the isthmus and uterus, highlighting the unique characteristics of each section and their functional implications. This study provides essential insights into the structure and function of the hen's oviduct, contributing to our understanding of the complex physiological processes involved in egg formation. 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.…

Paperback. Etat : New. Print on Demand. This book delves into the intricacies of poultry breeding, offering practical solutions to the challenges of maintaining accurate pedigree records. The author emphasizes the importance of meticulous record-keeping in scientific and utilitarian breeding endeavors, recognizing the complexities that arise as breeding stock expands. Set against the backdrop of early 20th-century agricultural practices, the book introduces innovative techniques and tools developed at the Maine Agricultural Experiment Station. Readers will discover detailed descriptions of trap nests, egg-distributing tables, and chick leg-band benders, all designed to streamline the breeding process and ensure the integrity of pedigrees. The author explores the principles of heredity and the significance of understanding ancestry in breeding for desired traits. The book's insights underscore the importance of systematic breeding operations in advancing both scientific knowledge and practical poultry production. Ultimately, this work serves as a testament to the transformative power of meticulous record-keeping in shaping the future of poultry breeding. 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.…

Paperback. Etat : New. Print on Demand. This comprehensive book delves into the complexities of genetic variation in self-fertilizing plants, a topic at the heart of modern genetics. The author, a leading expert in the field, meticulously examines the concept of pure lines, a fundamental principle in plant breeding. Exploring a wide range of ideas, the book investigates the role of selection within these pure lines and challenges conventional wisdom. Through rigorous analysis, the author presents compelling evidence that contradicts long-held assumptions about the impact of selection on genetic traits. The insights gleaned from this comprehensive study fundamentally reshape our understanding of the nature and limitations of selection in shaping plant characteristics. 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.…

Paperback. Etat : New. Print on Demand. This book focuses on the study of oat breeding. The author selected individual plants from commercial varieties and grew them in isolation to study their characteristics. Over several years, the author analyzed the plants for yield, straw weight, and other characteristics. This book examines how oat plants with various phenotypes compare in productivity. By comparing the pure lines to commercial varieties, the author argues that pure lines are superior due to their consistent high yield. This book will interest those who want to improve the quality of their oat crops. 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.…

Paperback. Etat : New. Print on Demand. This book presents research from variety tests of oats conducted at the Maine Agricultural Experiment Station over four years, from 1910 to 1913. The author explores various aspects of oat breeding, including variety testing, pure line selections, and hybridization. It also delves into general questions of heredity, making this book a valuable resource for scientists and farmers alike. The book is a testament to the importance of careful seed selection and cultural practices in oat production, offering insights into the factors that influence oat yield and quality, solidifying its place as an essential guide for maximizing oat production. 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.…