235 



water, but during the past two years no difficulty has been experienced in tilling 

 them; two or three feet of water flowed over the Gordoniere Marsh, which is now 

 dry with beach lines forming along its margin; and boats were rowed over all 

 parts of the Johnson Marsh, while at present hardly any of its surface is sub- 

 merged. 



Consult Hydrogbaphic Map Next to Front Cover. 



Temperature of Turkey Lake. By .J. P. Dolan.* 



In making these observations a Charles Wilder standard, protected, thermom- 

 eter was employed. They were begun the 13th of July, during which month four 

 soundings were taken in the deepest parts of the lake from the surface to the 

 bottom at every five feet. Then on October 5 two records were made at about the 

 same points, and again on November 2. 



September 17 a rain guage was set u^j and from that day to the present a 

 regular record of temijerature, precipitation, direction of wind and rise and fall 

 of lake has been kept, but the observations have t)een confined to the northwest 

 part of the lake; properly, Syracuse Lake. 



I. TKUPKRATCRE3 oK TURKEY LAKE, 1^95. 



J0LT. 



Oct. 5. 



Indiana University Biolog- 

 ical Station. 



13th, 

 10 a.m. 



I.U. 

 Bio. 



Stat'n. 



23d, 



8:45 11a.m. 



A. M 



Jar- 



bett's 



Bay. 



1:45 



p. M. 



Nov. 2. 



I.U. 

 Bio. 



Stat'n, 



11:10 



A. M. 



Dec.14. Dkc.24 



Black 

 Stump 

 Point. 



10 a.m. 



Air 



Surface 



5 feet- 

 10 " . 

 15 " . 

 20 " ■ 

 25 " .. 

 30 " 

 35 " . 

 40 " .. 

 45 " . 

 50 " .. 

 55 " ., 

 60 " .. 

 65 " ., 

 67>^ " .. 



Dejt. 



81^ 

 74 



Deg. 

 83>^ 



10 



73 ; 



72)^ ' 



71 



68 



6j 



60 



60 



59 



59 



58 



58 



58 



74 

 74 

 71 

 65 

 '3 

 62 

 60 

 .57 



Deg. 

 78}^ 

 75 



74^2 

 73K2 



68)^ 



Deg. 



72 

 76H 



71 

 70 

 67K 

 61>l 



o8K 



58 

 58 



58 

 58 



Deg. 

 65 



60^^ 

 60 

 60 

 59 

 58^ 

 58 V^ 

 58^4 

 5li% 



58i| 

 581/1 

 5814 

 58^ 

 58 



Deg. 



61^ 



m% 



.59 

 59 



b»% 



58j| 



58)4 



58)4 



58 



58 



58 



58 



57K 



56^4 



mi 



Deg. 

 50 

 43 



43 



43 

 43)4 



Deg. 

 28 



34)4 

 34)4 

 34>'2 



35 



35)4 

 "35)4 



''Contributions from the Zoological Laboratory of the Indiana University, No. 15. 



