h acraek. The tool itself is simply a dovetail screw McDonald, of Mott Haven, N. Y. It rests on a bed, A, says. the. Gazette, than during tho past two days. The J, with cutting teeth made on the outside of the screw, and can be operated from a shaft, B, by hand or other thermometer has ranged in… … the bary a, on the Dars, I, meteorological registers of MACDONALD'S DOVETAIL AND TENON CUTTER. catches in a serew, 6, of the the Observatory in that city, same pitch as the cutters, and which carries the stuff for- Its long continuance is some- the narrowest part of the cut and gradually deepens…
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