New York Weather Bureau. 479 



' Seneca Lake. 



The pamplilet of Dr. W. D. Wilson, previously quoted, states 

 that " Seneca lake never freezes over far from the shore." Ice 

 usually forms, however, to some extent in the shallow section 

 near the foot of the lake. Mr. W. B. Dunning, of the Seneca 

 Lake Na\agation Company, informs the writer that the com- 

 pany's steamers run throughout the year. The surveys made by 

 the college of civil engineering, Cornell University, give the 

 greatest depth of Seneca lake as 618 feet, opposite North Hector. 



Keuka Lake. 



Mr. W. W. Eastman, superintendent of the Keuka Lake Navi- 

 gation Company, furnishes the following statement : ^' Our lake 

 usually freezes ait this end (near Pemn Yan) about the 24th or 

 25th of December, but only from 5 to 10 miles up. The west 

 branch, at the Branchport end, freezes about the same time, but 

 seldom further than Pultney, about 5 miles. The upper end, 

 from Hammondsport to Gibsons and Keuka, and usually down as 

 far as Ogoyago, as a rule, is open; but I have known it to be 

 closed the entire length. We have run a boat from Penn Yan 

 to Hammondsport as late as the 11th of February and have run 

 in January quite often. We usually run a boat on the upper end 

 all winter." The greatest depth of Keuka lake is 186 feet, about 

 midway up the west branch, according to University surveys. 



Chautauqua Lake. 



Mr. C. E. Grandin, superintendent of the Chautauqua Steam- 

 boat Company, states that " the ice came last year (1891) about 

 December 20th and went out March 24th. This would be a fair 

 average for this lake. However, during January, 1876, steamers 

 made regular trips for four days, beginning with the 1st, an un- 

 usual occurrence." 



Lake Pleasant 



and others of the same chain, in the southern Adirondacks, 

 usually become frozen between November 15th and December 

 10th, as observed by Mr. G. A. McCoy, of Sageville. 



