arts are combined with a right and left hand common with the ones now in-.vogue, but the method of pro- that can be multiplied or reduced in their rotary power as screw, EH, with a thumb piece to operate it, so that by its rota- pelfing it is quite different. practice and skill may warrant, are… … it. The effect of the right and left hand screw is to give sim- is to be revolutionized. Something of utility, convenience, The object of the improvement of Gompertz was to bring ultaneous and equal movement to each jaw of both pairs to and economy may come of the innovation ; meanwhile it is. the…
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