237 



'•' Broken thermometer. 



Under ice. 



t Common thermometer. 



SUMMARY OF TEMPKBATURES. 



Septkmber. 



October. 



Date. Deg. ; Date. Deg. 



November. 



Date. Deg. 



December. 



Date 



Deg. 



Air 



Surface, 25 ft 

 Bottom- 



Air 



Surface, 25 ft 

 Bottom, 25 ft 



19 

 21 



20 



54 

 37 

 37^ 



z 



> 

 <5 



1 13 



7, 8, 9, 10 

 6, 8, 9, 15, 17, 18, 19 



Air 



Surface 

 Bottom 



06 



662.4 



47.8 

 51.7 

 51.57 



36.7 

 41.2 

 41.93 



12 



2 



33 



35 



311 



33|| 



355s 



N. B. — Water general average for three months higher than air. 



