U7 



Monthly and Annual Mean Surface V/ater Tanperatures, F 



New York Steamship Viharf at foot of 24th Street, 1873-75. Foot of Tremont Street; 

 22nd Street, 21st Street. 



1873-Oct. 1879 inol., readings at 3 p.m. 



Nov. 1879-Jtine 1831 incl,, readings at 1 p.m. 



July 1881 etc., readings at 2 p.m. Washington time. 



Source - USCFF 



