 | 1850 - Страниц: 492
...in helmets and in boots, as protections from pressure for the head and feet. They all grow on rocks, adhering not by one point only, nor by the whole surface, but by the coast, which becomes suddenly deep. The superior fineness of texture in these deep-sea kinds is... | |
 | G. Collins - 1859 - Страниц: 300
...in helmets and in boots, as protections from pressure for the head and feet. They all grow on rocks adhering, not by one point only, nor by the whole surface, but by the coast which becomes suddenly deep. He attributes the superior fineness of texture in these deep... | |
 | 1865 - Страниц: 600
...account of the sponges of commerce is more detailed. He distinguishes three varieties: those which arc lax and porous; those of thick and close texture ;...attributes the superior fineness of texture in these deep-sea kinds to the greater uniformity of temperature of the water in such places. When alive and... | |
 | Anonymous - 1865 - Страниц: 602
...account of the sponges of commerce is more detailed. He distinguishes three varieties : those which are lax and porous ; those of thick and close texture...attributes the superior fineness of texture in these deep-sea kinds to the greater uniformity of temperature of the water in such places. When alive and... | |
 | 1865 - Страниц: 600
...stronger than the others. These last were rarest and used to be placed in helmets and in boots, ns protections from pressure for the head and feet. They...kinds grow on the coasts which become suddenly deep. Ho attributes the superior fineness of texture in these deep-sea kinds to the greater uniformity of... | |
 | 1865 - Страниц: 600
...texture ; and a third kind, called sponges of Achilles, finer, more compact, and stronger than tho others. These last were rarest and used to be placed...but by some extent of their surface. The best kinds growon the coasts which become suddenly deep. He attributes the superior fineness of texture in these... | |
 | 1847 - Страниц: 440
...helmets and in boots, ав protections from pressure for the head and feet. They all grow on the rocks, adhering not by one point only, nor by the whole surface, but by some extent of the surface. The best kinds grow on the coast« which become suddenly deep, lie attributes the superior... | |
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He distinguishes three varieties: those which arc lax and porous; those of thick and close texture ; and a third kind, called sponges of Achilles, finer, more compact, and stronger than the others. These last were rarest and used to be placed in helmets... 