WHOLE VOL. NORTH AMERICA 797 



OAXACA, MEXICO 



Lat. 16° 4' N. Long. 96° 43' W. Hb = 1,563 m. 

 TEMPERATURE IN DEGREES C. 



Means, hours of obsei-vation not given 



M'ns 17.2 18.6 213 22 8 23.3 21.9 21.0 21.2 20.5 19 6 18 8 16.9 20.3 



