312 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 90 



OAXACA, MEXICO 



Lat. 17° 4' N. Long. 96° 42' W. H = 1563 m 



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



GRAV. AT 45° LAT * 



Means of K7 h + 14 h + 21 h ), 90th meridian W. 



600 mm + 



M'ns 34.3 34.0 33.2 32.9 33.2 32.6 34.2 34.1 32.8 33.2 34.3 34 5 ,33 6 



TEMPERATURE IN DEGREES C. 

 Means of 7 h , 14 h , and 21" 



TOTAL PRECIPITATION IN MILLIMETERS 



* A correction of - — 1.4 mm was applied for gravity. 

 t Mean of 12 monthly means. 

 t Sum of 12 monthly means. 



