Most of the AMERICAN with its splendid engravings an d valuable Information Commercial trade and manufacturing announcements of leading houses. Terms for Export Edition $ a year sent prepaid to any part of the world. Single copies 50 cents. ar Manufacturers and others who desire to secure foreign trade may have large and handsom ely displayed an nouncements published in this edition at a very moderate cost. ation in a commercial places throuyhout the world. Address MUNN & CO 37 Park Row New York. Contents. Albumen of the serum 309 Locomotive Met. Elev. R R. 310 Alum in bread. 303
Most of the AMERICAN with its splendid engravings an d valuable Information Commercial trade and manufacturing announcements of leading houses. Terms for Export Edition $ a year sent prepaid to any part of the world. Single copies 50 cents. ar Manufacturers and others who desire to secure foreign trade may have large and handsom ely displayed an nouncements published in this edition at a very moderate cost. ation in a commercial places throuyhout the world. Address MUNN & CO 37 Park Row New York. Contents. Albumen of the serum 309 Locomotive Met. Elev. R R. 310 Alum in bread. 303 Buckeye. 309 Coin? 'talon. Am. in Gt. Brit 314 Mortising machine new Mt Cotton worm facts about th e 312 Parsnips . 339 Dam. French 813 Patent Congress Paris Inter__ 305 I Fair World's in Australia . 305 Robbery bank 304 r Fair world's. in N. Y 305 Schoolrooms to warm 161 315 1 Fren oh exhibiti m closing 309 Soap harness to make 14 315 ' Life art of prolonging 303 THE SCIENTIFIC AMERICAN SUPPLEMENT Ncs. For the Week ending November 16 1878. with 3 illustrations showing the launch of the Obelisk ; the mode of Its erection ; itsappearance in position on the Thames embankment London. An Improved Whaling Gun. sive force. Thirty experiments upon plates. Annealed steel. Effects of sulphur phosphorus and cinder. Tensile strength of iron and steel. Drilled and punched holes. Rule to find the power required to steel crumblesteel. sub-carboniLed steel Swedish bar iron mild rivet steel best merchant iron Tud hoe crown iron etc. embracing 40 vari eties of iron and steel. These experiments are illustrated by two pages of figures showing the behavior of the metals under torsion tension. and concussion and the effects of punching. The results carefully tabulated with size of specimen permanent set induced maximum strain per cent of elongation final breaking strain bending drifting before and after annealing composition of specimen and all particu E The instruction of small
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