20 MR. G. V. VERNON ON THE IRREGULAR BAROMETRIC 



Table III. — Monthly Temperature at the Gt. St. Bernard. 





January, 



February, 







Difference 





Difference 



Year. 



Temperature, 



from average 



Temperature, 



from average 









of 20 years. 





of 20 years. 























1848. 





8-4 



-6'o 



19-4 



+ 3-1 



1849. 





17-8 



+ 3-4 



217 



+ 5-4 



1850. 





12*2 



— 2-2 



21'9 



+ 5-6 



1851. 





i8-i 



+ 37 



16-4 



+0-I 



1852. 





19-4 



+ 5-0 



14-8 



-1*5 



1853. 





17-8 



+ 3*4 



6-6 



-97 



1854. 





i8-o 



+ 3-6 



IO-8 



-5'5 



1855. 





13-1 



-1*3 



17-9 



-fi-6 



1856. 





i8-3 



+ 3*9 



23-1 



+ 6-8 



1857. 





IO-8 



-3-6 



i6-5 



-]-0'2 



1858. 





I2'0 



-2-4 



14*0 



-2-3 



Average of 

 20 years. 



} 



14-4 





i6-3 







March, 



i 



April. 























1848. 





17-8 



-0-9 



28*9 



+ 3-1 



1849. 





1 8-2 



-0-5 



20-8 



-5-0 



1850. 





1 7*2 



-1-5 



25*3 



-0-5 



1851. 





1 6*4 



-2-3 



26*9 



+I-I 



1852. 





18-3 



-0-4 



24-9 



-0-9 



1853. 





11-8 



-6-9 



217 



-4-1 



1854. 





21*4 



+2^7 



27-5 



+ 17 



»855. 





i7'o 



-1-7 



247 



— i-i 



1856. 





22*2 



+ 3-5 



267 



+0-9 



1857. 





2I"0 



+2-3 



22*9 



-2-9 



1858. 





i8-i 



-0-6 



29-8 



+4-0 



Average of 

 20 years. 



} 



187 





25*8 







May. 



June. 























1848. 





36-9 



+4-6 



40' 6 



+ I-0 



1849. 





34*5 



-)-2'2 



43*3 



+ 37 



1850. 





29-2 



-31 



40*6 



+ I-0 



1851. 





29*0 



-3'3 



40*6 



+ I-0 



1852. 





31-8 



-0-5 



36-9 



-27 



1853- 





30-9 



-1-4 



377 



-1-9 



1854. 





32-4 



+0-I 



37'2 



-2-4 



1855. 





28-4 



-3.9 



37'o 



-2-6 



1856. 





28-9 



-4'4 



39'6 



O'C 



1857. 





33*o 



+07 



37-8. 



-1-8 



1858. 





29-8 



-^'5 



43"6 



+4-0 



Average of 

 20 years. 



} 



32-3 





39-6 





I 

 I 



