 | Science - 1825 - 448 pages
...of the water the currents were visible at a great distance, and on placing some small pieces of cprk or of dry paper over the apertures, I could perceive...specimen rested. A portion of soft bread, pressed bet ween, the fingers into a globular form, with a diameter larger than that of the orifice, and placed... | |
 | Science - 1825 - 440 pages
...small pieces ot cprk or ot dry paper oyec, the apertures, I could perceive them moving, by the.fpjcepf the, currents, at the distance of ten feet from the...specimen rested. A portion of soft bread, pressed betwe^a fthe fingers into a globular form, with a diameter larger than that of the orifice, and placed... | |
 | Anne Pratt - Botany - 1850 - 372 pages
...chalk on the surface of the water, the currents were visible to a great distance ; and on placing some pieces of cork or of dry paper over the apertures,...the distance of ten feet from the table on which the specimens rested." And thus the wondrous operations of nature, till lately unsuspected, have been continually... | |
 | David Landsborough - 1852 - 206 pages
...places of the sea- coast, and the very one that led us to speak of sponges. "The Spongia or Halichondria panicea presents the strongest current which I have...feet from the table on which the specimen rested." Did it not carry us too far, we would like to give at some length the conclusions come to by Dr Johnston,... | |
 | Robert Bentley Todd - Anatomy - 1852 - 836 pages
...at a great distance, and on placing some small pieces of cork or of dry paper over the apertures, he could perceive them moving by the force of the currents...bread pressed between the fingers into a globular form was not moved away in a mass by the stream, but was gradually worn down by the current beating on its... | |
 | James Hamilton - 1854 - 988 pages
...covered its rface and highest orifice with water. On strewing some * Edin. Phil. Journ. xiii. 102. powdered chalk on the surface of the water, the currents...apertures, I could perceive them moving by the force of the current, at the distance of ten feet from the table on which the specimen rested.* The publication... | |
 | 1854 - 428 pages
...covered its surface and highest orifice with water. On strewing some * Edin. Phil. Journ. xiii. 102. powdered chalk on the surface of the water, the currents...apertures, I could perceive them moving by the force of the current, at the distance of ten feet from the table on which the specimen rested.* The publication... | |
 | Jabez Hogg - Microscopes - 1854 - 550 pages
...chalk on the surface of the water, the currents were visible to a great distance; and on placing some pieces of cork or of dry paper over the apertures,...feet from the table on which the specimen rested." Aleyonetta.—This term distinguishes a sponge-genus found in masses inhabiting stagnant waters, and... | |
 | Jabez Hogg - 1856 - 530 pages
...chalk on the surface of the water, the currents were visible to a great distance; and on placing some pieces of cork or of dry paper over the apertures,...feet from the table on which the specimen rested." Sponges grow attached to almost every thing which may serve them as a point of support, whether fixed... | |
 | Philip Henry Gosse - Zoology - 1857 - 396 pages
...presents the strongest current which he had seen. " Two entire round portions of this Sponge," he says, " were placed together in a glass of seawater, with...apertures, I could perceive them moving by the force of the current, at the distance of ten feet from the table on which the specimen rested.* The publication... | |
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... pieces of cork or of dry paper over the apertures, I could perceive them moving, by the force of the currents, at the distance of ten feet from the table on which the specimen rested. 
