 | 1840 - 484 pages
...investigation. Among the floating Mollusca likely to be met with in the tropical latitudes is the Spirula, a small Cephalopod with a chambered shell. An entire...alive, its movements should be watched in a vessel of sea-water, with reference more especially to the power of rising and sinking at will, and the position... | |
 | 1840 - 458 pages
...investigation. Among the floating Mollusca likely to be met with in the tropical latitudes is the Spirula, a small Cephalopod with a chambered shell. An entire...it should be captured alive, its movements should bo watched in a vessel of sea-water, with reference more especially to the power of rising and sinking... | |
 | 1842 - 450 pages
...the sea. Among the floating Mollusca likely to be met with in the tropical latitudes is the Spirula, a small Cephalopod with a chambered shell. An entire...and the position of the shell during those actions. A sketch or drawing of Molluscous and Radiate animals, of which the form and colour are liable to be... | |
 | 1849 - 424 pages
...is the spirulu. a small cephalopod with a chambered fchell. An entire specimen of this rare mollusc is a great desideratum ; and if it should be captured...alive, its movements should be watched in a vessel of sea-water, with reference more especially to the power of rising and sinking at will, and the position... | |
 | 1849 - 428 pages
...Brodrip. Among the floating mollusca likely to be met with in the tropical latitudes is the spirula, a small cephalopod with a chambered shell. An entire specimen of this rare mollusc is a great desideratum ; and if it should be captured alive, its movements should be watched... | |
 | Royal society of arts of Jamaica - 392 pages
...is the ftpirula, a small eephalopod with a chambered shell. An entire specimen of this rare mollwk is a great desideratum ; and if it should be captured alive, its movements should he watched in a vessel of sea water, with reference more especially to the power of rising and sinking... | |
 | John Frederick William Herschel, Robert Main - 1859 - 496 pages
...the tipirula, a small cuttle-fish with a chambered cell covered by the skin at the end of the body. An entire specimen of this rare mollusk is a great...should be opened under water, in order to determine whether it contains a gas ; the nature of this gas should likewise, if possible, be ascertained. As... | |
 | Samuel Peckworth Woodward - 1866 - 714 pages
...hinge, especially in the genera (like the jbtatinid) provided with an ossicle. ON COLLECTING SHELLS. captured alive, its movements should be watched in a vessel of sea- water, to see whether it has the power of rising and sinking at will ; its mode of swimming, and position... | |
 | Great Britain. Admiralty - 1871 - 424 pages
...the Spirula, a small cuttle-fish with a chambered cell covered by tho skin at the end of the body. An entire specimen of this rare mollusk is a great...alive, its movements should be watched in a vessel of sea•water, with reference more especially to the power of rising and sinking at will, and the position... | |
 | John Frederick William Herschel, Robert Main - 1871 - 420 pages
...the Spirula, a small cuttle-fish with a chambered cell covered by the skin at the end of the body. An entire specimen of this rare mollusk is a great...alive, its movements should be watched in a vessel of sea-water, with reference more especially to the power of rising and sinking at will, and the position... | |
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Among the floating Mollusca likely to be met with in the tropical latitudes is the Spirula, a small Cephalopod with a chambered shell. An entire specimen of this rare mollusk is a great desideratum ; and if it should be captured alive, its movements should... 