Affiliations Research 1938Auxiliary Professor Of BiologyUniversidad De La Habana1939Auxiliary Professor Of BiologyUniversidad De La Habana1939Latin American FellowshipJohn Simon Guggenheim Foundation1940Latin American FellowshipJohn Simon Guggenheim Foundation 1938[subject unknown]Beginners1939[subject unknown]Beginners1939[subject unknown]Beginners1940[subject unknown]Beginners
