Ocean wonders- a companion for the seaside (1879) (14579673479)

Identifier: oceanwonderscomp00damo (find matches)

Title: Ocean wonders: a companion for the seaside

Year: 1879 (1870s)

Authors: Damon, William Emerson, 1838-

Subjects: Marine animals Aquariums

Publisher: New York, D. Appleton and company

Contributing Library: The Library of Congress

Digitizing Sponsor: The Library of Congress

Text Appearing Before Image:

or two exceptions to thisrule have been reported, as madrepores having been found alive and well six inches above low tide; but the narratordoes not say how long they remained alive ! In those dense,weighty, dome-like forms called Astrcea, the rule certainlyholds good: when the summit attains the level of the sea,progress ceases as to height, but it may yet be enlarged con-siderably as to breadth; and, should we endeavor to sep-arate one of these masses into their respective living anddead portions, we should have in the former a hemisphericalshell, perhaps not more than half an inch thick, while thedome would be a mere dead mass of stone, perhaps ten orfifteen feet in diameter. The final solidification of the coral mass is aided by theincreased secretion by the polyp shortly before its death, 30 THE OCEAN. filling all the pores with this stony matter in proportion asthe vital tissues occupying them shrink and dwindle. Thislast deposit greatly aids in strengthening those tree-like or

Text Appearing After Image:

Clttstee of Coeal-Polyps (Asteroides calycularis,Milne-Edwards), in various stages of expansion. Dead Coeal (Asteroides caly-cularis, Milne-Edwards).

иллюстрации морских животных Океанские чудеса — спутник морского побережья, 1879 г. книжные иллюстрации рыбы аквариумы биология изображения из интернет-архива библиотека Конгресса

1879

Library of Congress

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public domain