CONTENTS. 
Page 
Extreme Positions — 
During the Daily Observations ; with the Ranges, 254 
During observed Disturbances ; with the Ranges, • 255 
During Term-Days ; with the Ranges, 256 
Mean Positive and Negative Excesses of the Extreme Excursions of the Three 
Magnets, 257 
Of the Daily Means, • 258 
Extreme Values of the Diurnal Ranges, 259 
Inclinometer — 
Monthly Means of the Observed Magnetic Dip, 259 
ABSTRACTS OF THE RESULTS OF THE METEOROLOGICAL OBSERVA- 
TIONS, 261 
Temperature of the Air — 
Annual Variation, 263 
Diurnal Variation, 264 
Approximations to the Monthly Means from Two Observations, 265 
Diurnal Ranges 267 
Extreme Temperatures, 267 
Temperature of Evaporation — 
Annual Variation, • 268 
Diurnal Variation, 269 
Range of the Diurnal Variation, 269 
Pressure of Aqueous Vapour — 
Annual Variation, 270 
Variations with reference to the Position of the Moon, 271 
Extreme Daily Means ; with the Ranges 271 
Diurnal Variation, 272 
Range of the Diurnal Variation, 273 
Relative Humidity — 
Annual Variation, 274 
Extreme Daily Means ; with the Ranges, - 274 
Variations with reference to the Position of the Moon, 275 
Diurnal Variation, 275 
Range of the Diurnal Variation, 276 
Atmospheric Pressure — 
Annual Variation, 277 
Variations with reference to the Position of the Moon, 278 
Diurnal Ranges, 279 
Diurnal Variation, 280 
Range of the Diurnal Variation, 280 
Extreme Readings and Daily Means ; with the Ranges. 281 
Pressure of Dry Air — 
Annual Variation, 282 
Diurnal Variation, 283 
l'ktremes of the Daily Means; with the Ranges, 285 
