l60 CATALOGUE. — PHLOSOPIIT AND ARTS, PRACTICAL MECHANICS. 



Desaguliers. p. 23. 

 Emerson's mechanics, f. 312. 



A weighing machine with chains. 



Salmon's patent weighing machine. Repert. 



VI. 73 



A weight acting on a spiral. 

 Whitmore's patent weighing machine. Re- 

 pert. IX. 103. 



Secured from rust. 



Weighing machine. R^es Cyclop. II. PI. 

 Engine. 



Steelyards. 



Hooke's steelyard. Birch. IV. 242. 

 Roemer's Danish balance. Mach. A. I. 79. 

 Lahire on the steelyard. A. P. IX. 46. 

 fEmerson's mechanics. F. 190. Compound 



steelyard. F. 288. 

 Lambert. Act. Helv. III. 13. 

 Steelyard for iron. E. M. PI. II. Art. Fer. ii. 



Pi. X. 



Cassini's steelyard shows the price of goods weighed. 

 Pictet on Paul's steelyard. Ph. M. III. 408. 



A coarse steelyard with a moveable fulcrum is sometimes 

 made of wood. 



Bent Levers. 



Lahire on the bent lever balance. A. P. II- 9- 



Lambert. Act. Helv. III. IS. 



Desaguliers on the balance with an oblique 



thrust. Ph. tr. 1729- XXXVI. 128. 

 Ludlam's bent lever balance for yarn. Ph. tr. 



1765. 205. 



A balance with a curved surface a* ■ fulcrum it a bad 

 substitute for a bent lever balance. 



Spring Steelyards. 

 A spring steelyard. Musch. Introd. I. PI. 4. 



Formed like a pair of shears. 



Hanin's spring steelyard. A. P. 1765. H. 135. 

 S. A. IX. 151. Roz. XXXIX. Enc. Br. 



Regnier's spring steelyard, approved. M. Inst. 



Standard Weights. 

 See Standard Measures. 

 Rkemniiis Fannius Palaemon de ponderibus 

 at mensuris. 



Commonly published with Priscian. 

 Norris's inquiry into the ancient English 



weights and measures. Ph.tr. 1775.48. 

 Desaguliers on the French and English 



weights. Ph. tr. 1720. XXXI. 112. 

 *Barlow on the analogy between English 

 weights and measures of capacity. Ph. tr. 

 1740. XLI. 457. 

 Comparison oT English and French weights. 

 Ph. tr. 1742. XLII. 185. 1743. XLII. 541. 

 ♦Reynardson on English weights and mea- 

 sures of capacity. Ph. ir. 1749- XLVI.54. 

 Considers the avoirdupois as the true standard, and the 

 ounce as equal to the old Roman ounce. 

 Chrtsttani delle misure d'ogni genere. 4. Ven. 



1760. 

 Tillet on French and foreign weights. A. P. 



1767.300. H. 175. 

 Raper on the Greek and Roman money. Ph. 



tr. 1771.462. 

 Brookes on East Indian weights. 

 Colebrooke on Indian weights. As. res. V. 



91. 

 E. M. Commerce. 3 v. 

 Coquebert on the Chinese weights. B. Soc. 



Phil. n. 1. 

 Coquebert on the Dutch weights. B. Soc. 



Phil. n. 74. 

 Fair's tables. R. S. 

 Shuckburgh's experiments on standards. Ph. 



tr. 1798. 

 Studer on the weight of water. Gilb. XIII. 



122. 

 Eytelwein. See Journ. R. I., I. 150. 

 Cavallo's Philosophy. IV. 



