. The conchologist's text-book : embracing the arrangements of Lamarck and Linnæus, with a glossary of technical terms : to which is added a brief account of the Mollusca. Mollusks; Shells. COLLECTING SHELLS. 211 covered, wliich inhabit the mighty deep. Indeed we may be said to know scarcely anything of the marine natural history of foreign hinds, as few or none of them have been assiduously explored by the dredge. The following is a representation of that To have a clear idea of the dredge, and the parts which compose it, we must imagine a round bar of iron, forged in the shape o
. The conchologist's text-book : embracing the arrangements of Lamarck and Linnæus, with a glossary of technical terms : to which is added a brief account of the Mollusca. Mollusks; Shells. COLLECTING SHELLS. 211 covered, wliich inhabit the mighty deep. Indeed we may be said to know scarcely anything of the marine natural history of foreign hinds, as few or none of them have been assiduously explored by the dredge. The following is a representation of that To have a clear idea of the dredge, and the parts which compose it, we must imagine a round bar of iron, forged in the shape of an almost equilateral triangle. A, B, C, of the above figure, and having its two extremities joined at A. To form the summit or point of the triangle, each of the sides should be above five feet. The two branches, A B, and A C, are rounded and bent, as they approach the base of the triangle. The base, B C, is forged into a plate, six inches in breadth, with a sharp cutting edge in front, turned up- wards at an angle of about sixty degrees. The back, or that part opposed to the edge of the plate, is an inch thick. By. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Brown, Thomas, 1785-1862; MacGillivray, William, 1796-1852. London : A. Fullerton
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Keywords: ., bookcentury1800, bookdeca, booksubjectmollusks, booksubjectshells
