 | Edward John Burrow - Mollusks - 1815 - 324 pages
...effected by the sudden opening and closing of the shell. This is done with so much muscular force, as to throw it four or five inches at a time. In the...raising himself to the surface, directing his course, ad lilitum, and suddenly, by the shutting of his valves, dropping to the bottom. His less active relative,... | |
 | Almanacs, English - 1823 - 400 pages
...done with so much muscular force as to throw it 1 Burrow's Elements of Conchology, p. 66, 2d edit. four or five inches at a time. In the water, an equal...raising himself to the surface, directing his "course ad libitum, and, suddenly by the shutting of his valves, dropping to the bottom. The scallop w#d:held... | |
 | Edward John Burrow - Mollusks - 1825 - 334 pages
...effected by the sudden opening and closing of the shell. This is done with so much muscular force, as to throw it four or five inches at a time. In the...raising himself to the surface, directing his course ad libitum, and suddenly, by the shutting of his valves, dropping to the bottom. His less active relative,... | |
 | John Lee Comstock - Geology - 1836 - 396 pages
...shutting the shell suddenly, and with so much muscular force, as to throw it five or six inches each time. In the water, an equal dexterity is evinced by the animal in raising himself to the surface; probably by the same means, and of directing his course at pleasure. When disturbed he shuts his valves,... | |
 | John Lee Comstock - Geology - 1841 - 398 pages
...shutting the shell suddenly, and with so much muscular force, as to throw it five or six inches each time. In the water, an equal dexterity is evinced by the animal in raising himself to the surface ; probably by the same means, and of directing his course at pleasure. When disturbed he shuts his... | |
 | John Lee Comstock - Geology - 1847 - 434 pages
...shutting the shell suddenly, and with so much muscular force, as to throw it five or six inches each time. In the water, an equal dexterity is evinced by the animal in raising himself to the surface; probably by the same means, and of directing his course at pleasure. When disturbed, he shuts his valves,... | |
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... the division B. Strong locomotive powers have been attributed to the Pecten, which are, it is said, exerted in a most singular manner. A very rapid progress is effected by the sudden opening and closing of the shell. This is done with so much muscular... 