320 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 105 



CRISTOBAL (COLON),* CANAL ZONE, CENTRAL AMERICA 



Lat. 9''21' N. Long. 79°54' W. Hb = 36 ft. 



PRESSURE AT SEA LEVEL: COR. TO 0° C. (32° F.) AND TO 



GRAY. AT 45° LAT. 



Means of I (7" 30'" + 19" 30'"), 75th meiidiau W. 



29 inches + 



Date Jan. Feb. Mar. Apr. May June July Aug:. Sept. Oct. Nov. Dec. Mean 



1931 

 1932 

 1933 

 1934 

 1936 

 1936 

 1937 

 1938 

 1939 

 1940 



Mean .869 



870 

 870 

 8C4 



840 

 830 

 872 

 873 

 892 



.804 

 .886 

 .894 

 .940 

 .935 

 .884 

 .888 

 .909 

 .910 

 .864 

 .897 



.868 

 .808 

 .881 

 .898 

 .890 

 .852 

 .843 

 .890 

 .898 

 .84i! 

 .873 



.844 

 .803 

 .800 

 .864 

 .859 

 .80? 

 .857 

 .866 

 .872 

 .855 

 .854 



.837 

 .834 

 .844 

 .850 

 .852 

 .8:20 

 .844 

 .840 

 .844 

 .826 

 .839 



.848 

 .828 

 .848 

 .848 

 .852 

 .832 

 .850 

 .860 

 .848 

 .s;?2 

 .845 



TEMPERATURE IN DEGREES F. ht 



Means of i(Max. + Min.) 



6 fi. 



PRESSURE AT SEA LEVEL 



Means of bihourly values, 75th meridian W. 



1,000 mb. + 



* See Notes, p. 39. 



