TWELFTH ANNUAL RICPORT 



95 



Record of monthly mean temperatures and specific gravities 

 at the Xew York Aquarium (hiring the years 1903, 1904, 1905, 

 1906 and 1907. (h>om daily observations made by Mr. W. I. 

 DeXyse.)* 



1903 



1904 





CA bo 



&2 



1905 





tn be 



1906 



1907 





■T.~j. 



January 



February .37 



March 40 



April 46 



May 56 



June 61 



July 66 



August 68 



September 68 



October | 62 



November 52 



December 40 



1.010 

 1.008 

 1.009 

 1.014 

 1.013 

 1.013 

 1.013 

 1.013 

 1.011 

 1.014 

 1.014 



34 

 3."» 

 36 

 40 

 52 

 61 

 70 

 71 

 68 

 59 

 51 

 59 



1.014 



1.014 



1.013 



1.009 j 



1.010 



1.010 



1.013 I 



1.014 



1.014 



1.013 



1.013 



1.015 



.30 

 33 

 36 

 43 

 52 

 62 

 68 

 71 

 68 

 62 

 51 

 44 



1.013 

 1.016 

 1.014 

 1.011 

 1.014 

 1.015 

 1.015 

 1.016 

 1.014 

 1.014 

 1.015 

 1.014 



1.012 

 1.014 

 1.013 

 1.010 

 1.011 

 1.013 

 1.015 

 1.016 

 1.015 

 1.012 

 1.010 

 1.011 



*Density observations were made with samples of water brought to a 

 temperature of 60 degrees Fahr. 



Respectfully submitted, 



Charle.s H. Towxsexd, 



Director. 



