638 



Mr. Alexander BucTian 



[March 25, 



of December, when fogs become most frequent, the curves for asthma 

 and bronchitis shoot up with startling suddenness. 



Figs. 16, 17, and 18 represent the curves for three of the nervous 

 diseases, viz. apoplexy, convulsions, and cephalitis. Apoplexy will 

 be observed to show a double-ridged maximum quite analogous to 

 that of the diseases of the respiratory organs ; whereas in the case of 

 convulsions, the maximum may be regarded as quite single, and 



Fig. 16. 



Jan. Feb. March. April. May. June. July, Aug. Sept. Oct. Nov. Dec. 



It f 7 ? M 



Apoplexy. 



Mean 



4obi)i.iit iMi 111 III iiiiiiii 111 11(1 III 111 1 1 1 n 



Convulsions. 



Fig. 18. 



Suicides. 



occurring in spring, this being the season when nervous diseases 

 generally are most fatal. On the other Land, the curve for cej)halitis 

 stands alone among nervous diseases as having its annual maximum 

 considerably later and as keeping above the mean till at least the end 

 of July, thus covering that portion of the year when the climate is 

 driest and hottest, as well as driest and coldest. The intimate 



