CATALOGUE. — PHILOSOPHY AND ARTS, PRACTICAL MECHANICS. 207 



Instruments of Penetration in ge- 

 neral, and Substances of which 

 they are composed. 



Military engines. Mathematici veteres Vege- 



tius, and Ammianus Marcellinus. 

 Reaumur Art de convertir le fer en acier. 4. 



Paris. 

 Silbersciilag on the warlike machines of the 



ancients. A. Berl. 176O. 378. 

 Ferret Art du coutelier. f. Paris. 



Ace. A. P. 1769. H. 131. 

 Fougeroux Art du coutelier en ouvrages 



communs. f. Paris. 

 Duhamel Art du serrurier. f. Paris. 

 Cutlery. E. M. A. II. Art. Coutelier. 

 Sword cutlery. E. M. A. III. Art. Fourbis- 



seur. 

 Coarse tool?, files, and ironmongery. E. M. 



A. VIII. Art. Taillanderie. 

 Agricultural instruments. E. M. Agriculture, 



3^ volumes io Ey. 

 Instruments of agriculture and horticulture. 



E. M. Art Aratoire. I vol. 

 Little on making steel. Am. Ac. I. 525. ■ 

 Vandermonde on steel and cutlery. Amii Ch. 



XIX. 13. 

 Franklarid on welding cast steel. Ph. tr. 



1795. 296. Repert. V. 327. 

 Pearson on woolz. Ph. tr. 1795. 322. 

 Pearson on some ancient arms. Ph. tr. 1796. 

 395. 422. 



Consisting of copper with some tin, from g to 14 per 

 cent. The ancients sometimes also employed cast steel, of 

 which some specimens were examined. A mixture of cop- 

 per and iron was less hard than an alloy with tin. 



On steel. Nich. I. 468. II. 64. Ann. Ch. 

 XXVU. 186. 



Stodarron steel. Nich. IV. 127. 



Wild's patent for uniting steel and hon. Re- 

 pert. 11. 368. 



Cort's patent for preparing iron. Repert. III. 



289, 361. 

 Dize on the copper cutting instruments of 



the ancients. Repert. IV. 62. 

 Hartley's patent for tempering instruments. 



Repert. IV. 310. 



By a thermometer. 

 Clouet on cast steel. B. Soc. Phil. n. 14. 

 Varley on steel and its preparation. Ph. M. 



II. 92. 178. 

 Mushet on iron and steel. Ph. M. II. 155. 



340. 

 Collier on iron and steel. Manch. m. V. IO9. 



Repert. X. 97- 



Saws are quenched in oil 5 penknives are tempered till 

 they become light yellow ; scissors light brown ; table 

 knives, swords, and watch springs, blue. 

 Edgill's patent steel. Repert. XI. 157. 

 Gazeran on steel. Ann. Ch. XXXVI. 6l. 

 On gilding cutlery. Cecum's chemistry. 11.172. 

 Nich. VI. 142. 



Conte sa.ys, that oil varnish with half its weight of spirit 

 of turpentine, is a good preservative from rust. 

 Stodart on Damascus sword blades. Nich. 



VII. 120. 



Penetration by Pointed Instru- 



, inents. 



Taking whales. Buch. I; 325. 

 Pile engine. Mach. A. I. 125. 

 Lahire's pile engine. A. P. 1707. 188. 

 Camus's pile engine. A. P. 1713. H. 76. 



Mach. A. III. 3. 

 Vergier's machine 'for driving piles. Mach. 



A. III. 189. 

 Driving piles. Leup. Th. Hydrot. t. 24, 25, 



29. 

 Raucourt's invention for shooting with cross 



bows. Mach. A. VI. 157. 

 Murtin's pile engine. A. P. 1742. H. 156.. 

 Bond on killing whales by means of a ba- 



lista. Ph. tr. 1751.429. 



