THE BEN NEVIS AND FORT-WILLIAM OBSERVATORIES. 



705 



I. —NUMBER OF CASES OF LARGE DIFFERENCES OF TEMPERATURE BETWEEN THE 

 BEN NEVIS AND FORT-WILLIAM OBSERVATORIES DURING THIRTEEN YEARS, 

 AUGUST 1890 TO JULY 1903. 



Diff. 



Jan. 



Feb. 



Mar. 



April. 



May. 



June. 



July. 



Aug. 



Sept. 



Oct. 



Nov. 



Dec. 



Year. 



20 



388 



347 



551 



799 



776 



595 



465 



512 



480 



473 



324 



358 



6,068 



21 



271 



167 



356 



512 



537 



413 



358 



319 



255 



210 



120 



162 



3,680 



22 



115 



68 



198 



414 



404 



302 



224 



186 



129 



88 



32 



43 



2,203 



23 



31 



16 



104 



262 



258 



192 



115 



95 



60 



8 



6 



6 



1,153 



24 



2 



2 



33 



129 



123 



114 



54 



39 



16 







3 



515 



25 







4 



35 



49 



45 



20 



4 



1 







1 



159 



26 









8 



10 



12 



2 



2 









2 



36 



27 









1 



3 



2 



2 











1 



9 



28 

























1 



1 



Total 



807 



600 



1246 



2160 



2160 



1675 



1240 



1157 



941 



779 



482 



577 



13,824 



25° 



) 



























and up- 



1 





4 



44 



62 



59 



24 



6 



1 







5 



205 



ward 



1 



























IL— NUMBER OF CASES OF 25° OR MORE DIFFERENCE OF TEMPERATURE AT ANY 



HOUR, AUGUST 1890 TO JULY 1903. 





J. 



F. 



M. 



A. 



M. 



J. 



J. 



A. 



S. 



0. 



N. 



1). 



Year. 



1890 























4 



(4) 



91 







2 



8 



22 



13 



i 

















46 



92 







... 



1 



5 



3 



5 



3 



1 















18 



93 











, m 



• • • 



• • • 





1 

















1 



94 













5 



4 



12 



















21 



95 













5 



6 



1 



2 

















14 



96 













• • • 



1 



2 



1 

















4 



97 













6 



2 



11 



1 



2 















22 



98 





. , 







, m 





9 



7 



1 

















17 



99 















8 



1 







1 













10 



1900 















4 



1 



6 

















11 



01 













5 





6 



1 



1 



... 











1 



14 



02 













5 



2 





7 



2 











., 





16 



03 









1 



5 



1 









... 













(7) 



Sum 







4 



44 



62 



59 



24 



6 



1 







5 



205 



