A cool Paternoster image:
Image from page 755 of “The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy” (1849)
Image by Internet Archive Book Images
Identifier: animalkingdomar00cuvi
Title: The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy
Year: 1849 (1840s)
Authors: Cuvier, Georges, baron, 1769-1832 Metcalf Collection (North Carolina State University) NCRS Blyth, Edward, 1810-1873 Mudie, Robert, 1777-1842 Johnston, George, 1797-1855 Westwood, J. O. (John Obadiah), 1805-1893 Carpenter, William Benjamin, 1813-1885
Subjects: Animals
Publisher: London : Wm. S. Orr and Co., Amen Corner, Paternoster Row
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries
View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.
Text Appearing Before Image:
icata. They differ from thetrue Ascidians, as well in their habits as in their structure. They are not attached to solid bodies, but habituallyBwim in the waters of the ocean, sometimes singly, sometimes in clusters ; their movement being due to the res-piratory current presently to be described. In form they resemble short but rather wide tubes, %%ith an opening at each end ; the respiratoryapparatus, instead of beingformed by the entire dilatedpharynx, here consists oftwo distinct branchial leaf-lets, and the branchial ori-fice is provided vdth a valvewhich permits the free en-trance of water, but pre-vents its return. The vis,cera are collected into asingle mass at the posteriorextremity of the body ; andthis mass is very conspicu-ous, owing to the brilhant , ., , • , .v orange, brown, or reddish E OF THESai.P^; <., mouth; p,po5tcrioror anal onficP;/,liver,mclos]ngother ^ . .. . c, heart; frr, hrauchii^l a:ic; m, uuiscular hands; n, nervous ganglion. hue Of the liver, of whlCh
Text Appearing After Image:
a large part of it is composed, and to the transparency of the remainder of the body. As in the other Tunicata,a continual stream of water is drawn in through tb, branchial orifice by the vibration of the cilia with whichthe respiratory and digestive surfaces are clothed; and a current as constant is ejected from the anal orifice.These two orifices being opposite to each other in the Salpcc^ and the animals being perfectly free, they acquirea progressive movement through the water, the branchial orifice being directed forwards. The Salpce are metwith in two states, solitary and aggregated. The latter are simply adherent to each other by little suckers, notbeing organically united like the compound and social Ascidians. The adhesion, however, is so strong in somespecies, that it is easier to tear the bodies of the animals than to separate them from each other ; in otherspecies, however, the adhesion is less powerful, so that when a mass is placed in a vessel of water, the sides ofwhich
Note About Images
Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability – coloration and appearance of these illustrations may not perfectly resemble the original work.
Image automatically curated and published by www.free-mail.co.za – CLICK HERE to learn more about WP Robot for WordPress.
Have you tried: Travelling to South Africa?