GENERAL INDEX. XV11 



PAGE 



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



degrees of Saussure's Hair Hygrometer, by Gay-Lussac . 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 . . . . . . .195 



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 



* VI. 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 



" VII. 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 . .260 



" XIV. Conversion of F'rench or Paris Lines into English Inches . 260 



" 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 . .269 



" XVIII. Reduction of English Barometers with Glass or Wooden Scales 276 



" XIX. Reduction of the Metrical Barometer, by Delcros . . .281 



" XX. Reduction of the Metrical Barometer, by Haeghens . . 287 



" XXI. Reduction of the old French Barometer, by Kaemtz . . 330 



