472 CATALOGUE. — METEOROLOGV, BAROMETRICAL MEASUREMENTS. 



Barometrical Measurements. 



Hooke on the constitution of the atmosphere. 



1652—.'}. Birch. I. 141, 181. 

 Hooke on the weight of air. Birch. I. 379. 



Makes it ^ as heavy as water. 



Pascal de I'^quilibre des liqueurs. 12. Par. 

 166S. 



Sinclair Ars gravitatis et levitatis. 



Halley on the height of the barometer at dif- 

 ferent elevations. Ph. tr. 1686. XVI. 104. 



Makes the mean density of air j^, of mercury 13.5: the 

 height 30 at the sea ; 29, 915 feet above it. 



Halley's barometrical observations on Snow- 

 don. Ph. tr. 1697. XIX. 565. 



A fall of 3.8 for 3720 feet. 



Halley on barometrical measurements. Ph. 

 tr. 1720. XXXI. 116. 



Proposes to employ Patrick's barometer. 



Derham on the height of the barometer on 

 the monument. Ph.tr. 1698. XX. 1. 



Finds a difference of .2 in 164 feet. 



Cassini on the condensation of the air. A. P. 



1705.61,272. H. 10. 

 Lahire on the density of the air, and on the 



height of the atmosphere. A. P. 1705. 



110. H. 10. 1708. 274! H. 11. 1713. 53. 



H.6. 

 Hauksbee on the weight of the air. Ph. tr. 



1706. XXV. 2221. 



Found it Jj; in May, the barometer 20.7- 



Maraldi. A. P. 1708. H. 26. 



Scheuchzer on the expansion of the air. A. 



P. 1711. 154. H.6. 

 Scheuchzer Experimenta barometrica de 



aeris elasticiiate. Ph. tr. 1715. XXIX. 



266. 

 Scheuchzer on the height of mountains. Ph. 



tr. 1728. XXXV. 537, 577- 



Allows 73.6 feet to .1. 



Varignon on the densities of the air. A. P. 

 1716. 107. H. 40. 



Desaguliers's contrivance for taking levels. 



Ph. tr. 1724. XXXIII. 165. 



A manometer, to be brought to a given temperature. 

 Ph.tr. 1725. XXXIII. 201. 



Some mercury, from the East Indies, was 14 times as 

 heavy as water. 



Nettleton. Ph. tr. 1725. 308. 



Allows 85 feet for .1 at 30. 

 Celsius Experimentum in argentifodina. Ph. 

 tr. 1725. XXXIII. 313. 



Gives 106 or 112 feet for .1, Swedish measure. 



Bernoulli. Act. Helv. I. 33. II. 101. 



*Bouguer on the expansions of the atmo- 

 sphere. A. P. 1753, 515. H. 39. 



Sulzer on barometrical measurements. A- 

 Berl. 1753.114. 



Lambert. Churbayerische Abh. III. ii. 75. 



Kaestner Markscheidekunst. cciv. 



*De Luc Modifications. §. 263. 



Logarithms give fathoms at 39-74° ; reducing for toiscs 



the air to 69.32°; the mercury to 54^°. 



Deluc's barometrical observations on the 

 depth of mines. Ph. tr. 1777- 401. 



Deluc's second barometrical measurement in 

 the Hartz. Ph. tr. 1779- 485. 



Confirms his own rules. 



Deluc. Roz. XLII. 264. « 



Deluc on refractions and expansions. Roz. 



XLIII. 422. 

 Maskelyne on Deluc's rule. Ph. tr. J 774. 



158. 

 Hbrsley on Deluc's rules, with investigations. 



Ph. tr. 1774. 214. 

 Lavoisier on the weight of the air. A. P. 



1774. 364. 



A cubic inch weighs .48 grains. Fr. ; hence a cubic inch 

 E. .325 gr. E., which seems to be too much. 



Hennert de ahitudinum mensuratione. 8. 



Utrecht, 1776. 1788. 

 *Shuckburgh's observations for ascertaining 



the height of mountains. Ph.tr. 1777. 513. 



Thespecific gravity of air at 53°, when the barometeris at 

 29.27, is Jj, consequently J,^ when the barometer is at 30°. 



