( Engraved by WH Mote, from a Photograph by John Watkins, 23 Parliament Street Joseph Whitworth JOSEPH WHIT WORTH, ESQ. C.E. FRS &c. 'n entor of the "Whitworth Fur. Frunder of the "buzarth, ci da tip. 80 THE MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS IN MECHANICS AND THE USEFUL ARTS; NATURAL PHILOSOPHY ; BY JOHN TIMBS, 99 66 CURIOSITIES OF SCIENCE, THINGS NOT GENERALLY KNOWN," ETC. "Every new development of intelligence is a source of pure enjoyment." WOOD & CO., 7, STATIONERS' HALL COURT. MDCCCLXIX. |