Tishery Indastiies of the United States, Sect. III. 



OCEAN TEMPERATURE CHART No. 13 



By RICHARD RATHBUN. 



Station: Sandy Hook Light Ship, New York. 



Representing, bjr means of curves, the temperature of the air from i88i to 1883, inclusive, and of the water at the surface irom 



188 1 to 1885, inclusive, reduced to means of ten days. 

 EXPLANATION OF THE CURVES: ; 1881, 1882, ...™... 1883, __ 1884, — 1885. 



(Issued m 1886.) 



