GENERAL INDEX. xvii 



PAGE 



Table XXV. Force of Vapor and Relative Humidity corresponding to the 



degrees of Saussure's Hair Hygrometer, by Gay-Liissac . 193 



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



Saussure's Hair Hygrometer, by Haeghens . . . .194 



" XXVII. Relative Humidity corresponding to the degrees of Saussure's 



Hygrometer, by Kaemtz . . . . . • .19;) 



Comparison of Quantities of Rain Water in different measures. 



Table I. Conversion of Centimetres into English Inches . . . 200 



" II. Conversion of Centimetres into French Inches and Lines . 200 



" III. Conversion of English Inches into Centimetres . . . 201 



" IV. Conversion of English Inches into French Inches and Lines . 201 



" V. Conversion of French Inches and Lines into Centimetres . 202 



" VL Conversion of French Inches and Lines into English Inches . 203 



III. BAROMETRICAL TABLES 205 



Comparison of the different Barometrical Scales. 



Table I. Comparison of the English and the Metrical Barometers . 215 



" II. Comparison of the English and the old French Barometers . 219 



" III. Comparison of the Metrical and the English Barometers . 225 



" IV. Comparison of the Metrical and the old French Barometers . 231 



" V. Comparison of the old French and the English Barometers . 238 



" VI. Comparison of the old French and the Metrical Barometers . 243 



" VI I. Comparison of the Russian and the Metrical Barometers . 247 



" VIII. Comparison of the Russian and the old French Barometers . 252 



Comparison of Barometrical differences. 



" IX. Conversion of English Inches into Millimetres . . . 257 



" X. Conversion of English Inches into French or Paris Lines . 257 



" XI. Conversion of Millimetres into English Inches . . . 258 



" XII. Conversion of Millimetres into French or Paris Lines . . 259 



" XIII. Conversion of French or Paris Lines into Millimetres . . 2G0 



" XIV. Conversion of P'rench or Paris Lines into English Inches . 2G0 



" XV. Conversion of Russian Half-Lines into Millimetres . . .261 



" XVI. Conversion of Russian Half-Lines into Paris Lines . . . 261 



Reduction of Barometrical observations to the Freezing Point 



XVII. Reduction of English Barometers with Brass Scales 

 XVIII. Reduction of English Barometers with Glass or Wooden 

 XIX. Reduction of the Metrical Barometer, by Delcros . 

 XX. Reduction of tlie Metrical Barometer, by Haeghens 

 XXI. Reduction of the old French Barometer, by Kaemtz 



. 269 



Scales 276 



. 281 



. 287 



. 330 



