LOCAL CLIMATOLOGY. 95 



But besides this, and beside the general influence of our inland 

 lake system, which, as I have already said, extends to all hxalitics 

 in this region, I have no doubt that the innnediate proximity of our 

 lake — the Seneca — is manifest in the phciioinciioii under conside- 

 ration. The lake is very deep, is never veiy wnim in .summer, 

 never freezes over far from the shore, and seldom (not more than 

 once in about five years on the average) aecumuhites ice enough, 

 even about the docks, to interfere with the steam])()at landinos. 



As confirming and illustrating ni}^ position, I introdne(^ statis- 

 tics derived from observations taken at Canandaigna. Tlie com- 

 parative physical position of the two places is indicatcnl as follows : 



Lat. Long. Height above sea. 



Canandaigna . _ 42.50'^ 77.15" (about) 590 feet 



Geneva 42.52 77.2 5(57 •' 



the only noticeable difference being 13' of longitude, or a few 

 miles west and east. 



Canandaio'ua is situated about one mile north of Canandaio^ua 

 lake, and about 100 feet a]K)ve its surface ; but the lake is much 

 smaller than the Seneca, and at a distance of some three miles 

 from its foot trends westward around a promontorj^ that rises 

 between the village and the main body of the lake. The lake 

 freezes early in the winter or late in the autumn up above this 

 trending point and the promontory just spoken of. Hence the 

 town derives little if any of the warming efiects of the open lake 

 and forming ice during the winter, and especially after the first 

 frosts. The half-monthly averages for the two places are as fol- 

 lows : 



WINTER. Canandaigna. Geneva- 



December, 1st half 28.81 30.28 



2d " 23.62 26.6^ 



January, 1st " - _ 25.03 24.9- 



2d " 21.57 25.4i 



February, 1st " 19.71 23.48 



2d " 22.47 2G.03 



SUMMER. 



June, 1st " 64.64 60.60 



2d " 66.94 64.81 



July, 1st " 69.48 7v0.44 



2d " 69.45 71.14 



August, 1st " 68.75 71.58 



2d " 65.34 68.09 



