XIV boletín ük la academia nacional de ciencias 



ESTADOS UNIDOS 



Baltimope. 



Johns Hopkiiin University . 



Circular. New 8er. 1913, N. 10. 1914, N. 1-8. 5. 6-10. 1915, N. 1. 

 tStndies iu Histórica! aud Political Scieuce. 8cr. 32, N. 2-3. 1915. 



Bloomington. 



Indiana University. 



JiuUctin. Yol. 13, N. 8. Catalog ininiber. 



Boston. 



American Acudemy of Artn and Sciences. 



Proccedings. Vol. 50, N. 1-3. 

 Socii'ty of Xatiiral Hixfory. 



Proceedings. Yol. 34. N. 13. Vol. 35, N. 1. 1912. 1914. 



Chicago. 



FieUl L'ohimhiau Musen in. 



Piiblicatiou. 94. 101. 110-113. 



Cíncinnati. 



Lloyd Lihiary. 



Hildiügrapliiciil coiitrilmtious. Aol. 2, N. 4-5. 1915. 



Columbia, Miss. 



Vniversity of Missouri. 



])iill('tin. Science 8er. Yol. 2, N. 4. 



Oes Moines, Jowa. 



Jowa Geologieal Survey. 



Annual Report. Yol. 24. 1913. 



Indianapolis, Ind. 



Indiana Academy of Science. 

 ProceediDgs. 1913. 



New Haven. 



Connecticnt Avademy of Arts and Sciences. 



Trausactious. Yol. 20, pp. 133-160. 1915. 



New York. 



American Geographical Society. 



Biilletin. Y^jI. 46, N. 12. Index. Y<d. 47, N. 1-5. 7-12. 1914. 1915. 

 Botanical Garden. 



Bulletiu. Yol. 9, X. 32. 



