Free and Discounted Ebooks
Join 130,000 readers! Get our ebook deals straight to your inbox.

A Mechanico-Physiological Theory of Organic Evolution

Cover image for


Published: 1898
Language: English
Wordcount: 15,101 / 55 pg
Flesch-Kincaid Reading Ease: 40.7
LoC Category: Q
Downloads: 657
Added to site: 2010.08.23 28784
Genre: Science

he strands of this network consist, in conformity with their origin, of parallel rows of micellæ extending lengthwise. These rows of micellæ are combined into more or less complex arrangements, so that the cross section of the strand represents the configuration of the idioplasm.[B]

[B] Nägeli makes his idioplasm ramify throughout the organism in unbroken continuity, much like a system of nerves in the higher animals. This idea with Nägeli was purely speculative. It was known that the protoplasm is in connection throughout the organism, but it has been proved more recently that only the somatic protoplasm is thus connected. The part in which the essential nature of the organism is contained is localized in the nucleus and hence might properly be designated as nucleoplasm, as Weismann suggests. If the idioplasm is localized in the nucleus, it cannot be continuous throughout the system, as Nägeli assumes. But this objection applies only to a detail of the theory and does not af



Join 120,000+ fellow readers! Get Free eBooks and book bargains from ManyBooks in your inbox. 

We respect your email privacy

login | register

User ID


reset password

Author of the Day

Michael Maxwell
When Micheal Maxwell isn't travelling the world with his wife, you are most likely to find him somewhere between Central Valley and the Sierra Nevada Mountains of California. If you do, and you have a chat with this interesting man, take care - you might just end up in a scene of one of his books! Maxwell loves writing character-driven mysteries about everyday people, books with heart that readers can relate to. In this interview, Maxwell reveals how Diamonds and Cole was inspired by a song, how he created Cole Sage and talks about his writing habits.
Read full interview...