The Biological Problem Of Today

The Biological Problem Of Today: Preformation Or Epigenesis? The Basis Of A Theory Of Organic Development (1896) is a book written by Oscar Hertwig. The book explores the debate between preformation and epigenesis in the field of biology. Preformation is the idea that all living organisms are preformed and exist fully formed within the germ cell, while epigenesis is the idea that organisms develop gradually through a process of cell differentiation and growth. Hertwig presents a detailed analysis of the arguments for and against each theory and provides a comprehensive overview of the history of the debate. He also proposes his own theory of organic development, which combines elements of both preformation and epigenesis. The book is considered to be a seminal work in the field of developmental biology and is still widely read and studied 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.