RELATIVE POPULATION IN HOT AND COLD DISTRICTS. 47 



males decreases, until the reverse occurs as the degrees of latitude 

 augment. We must, however, except from this rule the depart- 

 ment or state of Tamaulipas, in which the constancy with which 

 nature sustains the excess of males, is somewhat extraordinary. 

 The most ancient document possessed upon the subject, relative to 

 this State, is of the year 1793, and from this we discover that, from 

 that year until 1807, 124 more males than females were born there- 

 in, and that 30 more females than men died during the period — 

 More females than males are born More males than females are born 



in the following States, in the or- 

 der in which they are placed : 



1. Vera Cruz — greatest number. 



2. Oajaca. 



3. Puebla. 



4. Michoacan. 



5. Guanajuato. 



6. Jalisco. 



in the following States, accord- 

 ing to the order in which they 

 are placed : 



1. Alta California — greatest No. 



2. New Mexico. 



3. Sonora. 



4. Chihuahua. 



5. Coahuila. 



6. New Leon. 1 



1 See Boletin No. 1, del Institute) Nacional de Geogr*fia y Estadistica, Mejico, 

 1839. 



INDIANS OF THE TIERRA CALIENTE, 



