. Asiatic Researches. vi Appendix. The Instruments required by the geological traveller will vary, according to the acquirements and specific objects of the individual. The most essential are :— The Hammer ; which, for general purposes, may be of the form here represented:—.. The head should be of steel well tempered, about 4 inches from the face to the edge, and 1| inch square in the middle; the face flat, and square, or nearly so ; the edge placed in the direction of the handle. The orifice for the insertion of the handle oval, a very little wider on the outer si,de than within; its diameter
. Asiatic Researches. vi Appendix. The Instruments required by the geological traveller will vary, according to the acquirements and specific objects of the individual. The most essential are :— The Hammer ; which, for general purposes, may be of the form here represented:—.. The head should be of steel well tempered, about 4 inches from the face to the edge, and 1| inch square in the middle; the face flat, and square, or nearly so ; the edge placed in the direction of the handle. The orifice for the insertion of the handle oval, a very little wider on the outer si,de than within; its diameters, about 1 inch vertically, and -J^ across; the centre somewhat more than 1| inch from the face. The handle should be of ash, or other tough wood; not less than 16 inches long; fitting tight into the head at its insertion, without a shoulder; and increasing a little in size towards the end remote from the head, to prevent its slipping—It should be fixed in the head by means of a thin, barbed iron wedge. For trimming specimens, smaller hammers may be employed:—The form of the head, recom- mended for this purpose by Dr. MacCulloch*, is rectangular. The dimensions of the face may be 1 inch by |; the height 2|. It will be expedient to have always some hammers, (or at least the heads,) of different sizes, in reserve. A small miners pick is useful for cutting out, and splitting portions of slaty rocks ; or for ob- taining specimens of clays, &c. A small stone-cutter s chisel.—A chisel with a handle, of the form here represented, will oftea save the hand of an inexpert collector, and better enable him to direct his blow. * " On the forms of Mineralogical ; Quarterly Journal, (R. Inst.) vol. xi. 1821, p. 1, & 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 Calcutta
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