V I L L A L O N 387 



emy of Sciences of the Island of Cuba, of 

 the American Academy of Political and 

 Social Science, of the Cuban Society of 

 Engineers, and has represented his country 

 as a Delegate to the International Engi- 

 neering Congress held at San Francisco, 

 and to the Second Scientific, Pan-American 

 Congress held at Washington. 



AND MONOGRAPHS 



