103 Summary of the Rain, ^c. at Geneva, 



the latter place. A series of daily observations of the barometer, 

 thermometer, hygrometer, quantity of rain, &c. at the convent, 

 has been made for the last ten years ; and a summary of the ob- 

 servations was given in the Bibliotheque Universelle for March 

 last, together with those of the like kind made at Geneva for 

 thirty-two years. 



The observations at Geneva do not appear to present any 

 thing of peculiar interest. The annual means and the general 

 means for the period of thirty-two years are all that are given 

 in the summary; the mean temperature is 49 1°: this is low 

 considering the latitude, but the elevation of the place, its inland 

 situation, and its proximity to the Alps, conspire to reduce the 

 temperature. The annual rain is 30.7 inches (English measure). 



The observations on St Bernard are given much more in de- 

 tail. The monthly means for each year are given, and the ave- 

 rages for each month, for the barometer, thermometer, hygro- 

 meter, and rain ; from which general averages for the whole ten 

 years are obtained. 



It appears that the mean height of the barometer at St Ber- 

 nard is nearly 22 English inches ; the mean temperature is SOJ" 

 Fahrenheit ; the mean quantity of rain and snow is 60 inches 

 annually; and the mean state of the hygrometer (Saussure's) is 

 83 1°, only half of a degree more moist than at Geneva. 



From the accounts furnished, 1 have calculated the mean 

 monthly averages of rain at St Bernard for twelve years *, and 

 find them as under : 



Ra&r, 



January, .... 5.95 



April . . . . . 5.65 



May, 2.76 



July? : : : : : tie ^ ^^^'^- 



August, . . . . 4.31 



September, . . . . 4.79 



Sretber. : ! ! ! Jf l" ^--ge period. 



December, .... 5.42 



60.05 

 • Since the paper was read, I have incorporated two more years' rain, 

 namely 1828 and 1829, into the averages for St Bernard; so that the table 

 here presented is for twelve years. 



