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

Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6

Foraminifera to Fox, Edward

Cover image for

Download


Author: Various Authors
Published: 1911
Language: English
Wordcount: 173,359 / 539 pg
Flesch-Kincaid Reading Ease: 49.1
LoC Category: AE
Downloads: 1,466
Added to site: 2011.12.22
mnybks.net#: 31116
Genre: Reference
Excerpt

> Orbitolites (figs. 5, 6) we have a centre on a somewhat Milioline type; and after a few chambers in spiral succession, complete circles of chambers are formed. In the larger forms the new zones are of greater height, and horizontal bulkheads divide the

chamberlets into vertical tiers, each with its own pylomic pore.

[Illustration: FIG. 4.--Modifications of Peneroplis. 1, Dendritina; 2, Eu-Peneroplis.]

[Illustration: FIG. 5.--Shell of simple type of Orbitolites, showing primordial chamber a, and circumambient chamber b, surrounded by successive rings of chamberlets connected by circular galleries which open at the margin by pores.]

[Illustration: FIG. 6.--Animal of simple type of Orbitolites, showing primordial segment a, and circumambient segment b, surrounded by annuli of sub-segments connected by radial and circular stolon-processes.]

The Cheilostomellidae (fig. 3, 13) reproduce

SUBSCRIBE TO MANYBOOKS 

FREE EBOOKS 

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

We respect your email privacy

(advanced)
login | register

User ID

Password

reset password

Author of the Day

Henderson Smith
Award-winning screenplay writer Henderson Smith has always been fascinated by fairy tales. Today she chats with us about her book, "The Ugly Princess: The Legend of the Winnowwood." She explains why she made her princess ugly, why she finds the original fairy tales so enchanting and how her heart is ruled by a certain papichuahua.
Read full interview...