156 THE ANDES OF SOUTHERN PERU 



border type, and the inter-Andean type, we have given chief at- 

 tention because they have the most important human relations. 

 The statistical records of the expedition as shown in the curves 

 and the discussion that accompanies them give attention to those 

 climatic features that are of theoretical rather than practical inter- 

 est, and are largely concerned with the conventional expression 

 of the facts of weather and climate. They are therefore com- 

 bined in the following chapter which is devoted chiefly to a tech- 

 nical discussion of the meteorology as distinguished from the 

 climatology of the Peruvian Andes. 



