134 



MR. J. BAXENDELL : RELATIONS BETWEEN 



perature which are above the mean value, and the corre- 

 sponding data for the other elements. 



Tables IV. and V. contain the mean results of Tables 

 II. and III. The final mean values for the year are as 

 follows : — 



Difference 



of tem- 

 perature 

 between 

 the two 

 Stations. 



B^infall. 



Mean 

 Temperature. 



Amount of 

 Oscillation. 



Mean 



height of 



Barometer 



at 



Milan. 



Geneva. 



Gt. St. 

 Bernard. 



Geneva. 



Gt. St. 

 Bernard. 



Geneva. 



Gt. St 

 Bernard. 



o 

 18-25 

 21-18 



in. 



31-836 



32-898 



in. 



43*862 



48*485 



47*98 

 47*75 







29-72 

 26-57 



in. 



36*214 



42*284 



in. 



29-701 



33*892 



in. 



29*514 

 29*406 



2*93 



1-062 



4*623 



— 0-23 



-3*15 



6*070 



4-191 



— 0-108 



It appears, therefore, that with a difference of tempera- 

 ture of 1 8°' 25 between the lower and the higher stations 

 the rainfall at Geneva is 31*836 in., and at the Great St. 

 Bernard 43*862 in. ; while with a difference of tempera- 

 ture 2°*93 greater, or 2i°*i8, the rainfall at Geneva is 

 32*898 in., and on the Great St. Bernard 48*485 in., — the 

 difference at Geneva being +1*062 in., and on the Great 

 St. Bernard + 4*623 in. The conclusion drawn from Table I. 

 is therefore confirmed by these results, — a greater dif- 

 ference of temperature between the two stations being 

 accompanied by a greater fall of rain. 



With the lower difference of temperature, the mean 

 temperature at Geneva is 47°'98, and on the Great St. 

 Bernard 29°* 7 2 ; and with the higher difference the cor- 

 responding mean temperatures are 47°* 75 and 26°*57, the 

 difference at Geneva being — o°-23, and on the Great St. 

 Bernard —3°* 15. We are therefore led to the remark^ 

 able conclusion that an increased difference of temperature 

 is due to a diminution of temperature at the higher station, 

 and not to an increase of temperature at the lower station, 

 — an effect precisely the opposite of that produced by 



