XVI GENERAL INDEX. 



PAGE 



II. HYGROMETRICAL TABLES 37 



Tables based on Regnaulfs constants. 



a. In French measures. 



Table I. Elastic Force of Aqueous Vapor, by Regnault . . . .46 



" II. Psychrometrical Tables, by Haeghens . . . . .48 



" III. For deducing the relative humidity from the Indications of Dew- 

 point Instruments, by Haeghens ...... 66 



" IV. Factor 155 for computing Relative Humidity . . . .72 



" V. Weight of Vapor contained in a Cubic Metre of air . . .74 



b. In English measures. 



" VI. Elastic Force of vapor, reduced from Regnault's table . . 78 

 " VII. Psychrometrical tables, by A. Guyot . . . . .82 



" VIII. For deducing the Relative Humidity from the Indications of 



Dew-point Instruments, by A. Guyot . . . . -HI 

 " IX. Factor !?? for computing Relative Humidity . . . .126 

 " X. Weight of Vapor in a Cubic Foot of saturated air . . . 130 



Tables based on the constants used in the Greenwich observations. 

 XI. Elastic Force of Aqueous Vapor . . . . . .137 



XII. Psychrometrical Tables, by Glaisher 140 



" XIII. Factors for computing the Force of Vapor from Psychrometrical 



observations, by Apjohn's formula . . . . .176 



XIV. Factors for finding the Temperature of the Dew-point from the 



Readings of the Psychrometer . . . . . .178 



" XIV r . Factors for finding the Temperature of the Dew-point from the 



Readings of the Psychrometer . . . . . .182 



" XV. Weight of Vapor contained in a Cubic Foot of saturated air . 179 

 " XVI. Factors for deducing the Weight of Vapor from the Indications 



of Dew-point Instruments ....... 179 



" XVII. For comparing the Weight of a Cubic Foot of dry and of saturated 



Air 180 



Miscellaneous Tables. 



11 XVIII. Elastic Force of Vapor expressed in Millimetres by August . 186 

 " XIX. Elastic Force of Vapor expressed in Millimetres by Kaemtz . 188 

 " XX. Elastic Force of Vapor expressed in Millimetres by Magnus . 188 

 " XXI. Elastic Force of Vapor in English Inches from the Royal So- 

 ciety's Report ..." 189 



" XXII. For showing the differences in the values of the Elastic Force of 



Vapor adopted by different authorities . . . . .190 



"XXIII. Weight of Vapor in Grammes contained in a Cubic Metre of 



saturated air by Pouillet . . . . . . .192 



'" XXIV. Weight of Vapor in Grammes contained in a Cubic Metre of 



air, by Kaemtz . . ... . . . . . 192 



