Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 5
>-Of-YRlGHTFD I90S BV THEO. AUPEL &. CO. NEW rCRK Thous;hl is Ihf f<rincipal factor in all mfchanitat not k; thf mechanical tffott isan incident rather than thepuncxpal equipment in any tiade or occupation. .4nv (ratfe if ea^-Iv Irnrrrei hv rn a^t fh^J-r rf* j hii reasoning facultitsand…
Hydraulic machinery · Pumping machinery
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