148 CATALOGUE. PHILOSOPHY AND ARTS, PRACTICAL MECHANICS. 



Rennel on the travelling of camels. Ph. tr. 



1791. 129. 



Carney sur les poids et les mesures. 8. Montp. 

 1792.11.8. 



Cotte on measures. Jouru. phys. XLIV. (I.) 

 291. 



Dawes's pantometry. 12. Lend. 1797. R. S. 



Coquebert on the old and new measures. B. 

 Soc. Ph. n. 5. Nich. I. 193. 



*Shuckbiu"gh on a standard of weights and 

 measures. Ph. tr. 1798. 133. Nich. III. 

 97. 



Fait's tables. R. S. 



Fiiftdzcein on tiie Pnissian weights and mea- 

 sures. 



Goodwyn's tables of English and French 

 measures and weights. 11. S. Nich. IV. 

 163. 



Colebrooke on Indian weights and measures. 

 As. Res. V. 91. 



Tables of measures. Nich. I. Z39,. Ph. M. I. 

 245. 



On the metre. Journ. Phys. XLVIII. 4(50. 



Buija on the length of the pendulum at Ber- 

 lin. A. Berl. 1799.3. 



On the cubit of the Nile. Nich. III. 330. 



Vega and von Zuch on measures and weights. 



• Zach. Mon. corr. I. 6 10. 1 • • 



Beigel on the weights and measures of Ba- 

 varia. Zach. Mon. corr. I. GlO. 



Metrologie constitutionelle. 2 v. 4. Pm-. 

 1801. B. B. 



Xesj9«rorMetrologie. 2 v. 4. Par. 1801, 

 R. S. 



BnV/af Metrologie FrangaisCi 1802. 11. I. 



Reports to the National Institute. M. Inst. 



Egyptian measures. Nouet. Ph. M. XII. 



208. 

 Pictet on the English and French mea- 

 sures. Bibl. Brit. n. 148. Journ. R. I., I. 



Ph. M. XII. 229. Nich. 8. II. 244. Re- 

 pert, ii. III. 444. . 



Cavallo Exp. Ph. IV. 



Mutton's recreations. I. 434. 



On the Parisian pint. M. Inst. V. 29. 



Gerard on the Egyptian measure. To bt 

 printed. S. E. 



Tables of Measures. Standards. 



The English yard is said to have been taken from the arm 

 of King Henry I. in liol. 



Graham found the length of the pendulum vibrating se- 

 conds accurately equal to 39-13 inches. Desaguliers. 



Bird's parliamentary standard is considered as of the 

 highest authority: it agrees sufficiently with Sir Georgs 

 Shuckburgh's and Professor Pictet's scales made by Trough- 

 ton. 



The Royal Society's standard by Graham is perhaps about 

 a thousandth of an inch longer than Bird's ; but it is not quite 

 uniform throughout its length.' Maskelyne. Ph. tr. 



The standard in the exchequer is about .007 5 inch shorter 

 than the yard of the Royal Society. Ph. tr. 1743. 541. 



General Roy employed a scale of Sisson, divided by Bird. 

 He says, that it agreed exactly with the Tower standard 

 on the scale of the Royal Society. Ph. tr. 1785. 385. 



Taking Troughton's scales for the standard. Sir G. Shuck- 

 burgh finds the original Tower standard 36.004, the yard 

 E. on the Royal society's scale by Graham 36.0013 inches, 

 the yard Exch. of the same scale 35.9933, Roy's scale 

 36.00030, the Royal Society's scale by Bird 35.99955, Bird's 

 parliamentary standard of 1758, 36.00023. 



The English standards are adjusted and employed at the 

 temperature of 62° of Fahrenheit's thermometer: the 

 French at the freezing point of water. 



The French metre, the ten millionth part of the quadrant 

 of the meridian, is 39-37100 English inehes. Pictet, and 

 Journ. R. I., I. 129. Y. 



The metre has been found to contain 36.9413 French 

 inches, or 3 feet 11.296 lines. 



Hence the French toise of 72 inches is equal to 70.736 

 English inches. One of Lalandc's standards measured by 

 Dr. Maskelyne, was 76.73a, the other "6.736. Ph.tr. 17C5. 

 327- 



In latitude 4 5°, a pendulum of the length of a metre 

 would perform in a vacuum 86116.5 vibrations in a day. 

 Borda. The length of the second pendulum is .993827 at 

 Paris. M. Inst. H. 



