16 REMARKABLE EFFECTS OF SOL-LUNAll 



Without attending to fractions, we obtain fromp 

 the facts established in this record, the following' 

 statement of admissions. 



For the mean of the equinoctial period, . . 12,980 



For the mean of the inter-equinoctial inter- 

 vals, 11,232 



For the common mean of those periods and 



intervals, 12,091 



For the rwe of the equinoctial mean, above 



the common mean, 889, say 850=^ 



For the fall of the inter-equinoctial mean, 



below the common mean, . . 859, say 850=^*^ 



Those facts, expressed in other terms, amount to 

 these ; 



Isf. That whilst the temperature of the season in 

 the spring was passing from cold to hot the num- 

 ber of typhus fevers I'ose about -^ above the com- 

 mon standard. 



Qdly. That whilst the temperature of the season 

 in the autumn was passing from hot to cold, the 

 number of typhus fevers ivse in like manner about 

 T^r above the common standard. 



1 4 



3dli/. That during the months of summer, when 

 the heat of the season is greatest, the number of 

 typhus fevers Jell beneath the common standard 

 about -^; — and 



^thli/. That during the months of winter, when 

 the heat of the season is least, the nun\bcr of ty- 

 phus fevers fell in like manner below the common 

 standard in the same proportion, about -j^. 



