Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 384
1542. ARTIFICIAL LEG AND FOOT.—Most ingenious combinations of movements are made inproducing artificial limbs, not easily explained with-out a model. … 1543. MEAN TIME SUNDIAL,—The length of the stile is made to just cover theentire range of the suns altitude at the dis-tance of the scale on the hour circle. Itsshape and size to be proportionate to the sunsequation of time as marked on the scale.When the sun is fast the reading should be onthe…
Mechanical movements
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