AMERICA. 
a) America del Nord. 
Albany. — New York State Museum. 
Annual Report 44, 1890. 
Baltimore. — Johns Hopkins University. 
Studies from the Biological Laboratory. Vol. IV, N. 5 — 
V, N. 4. 
Boston. — American Academy of Arts and Sciences. 
Proceedings. (N. S.) Vol. XV—XIX. 
Cambridge. — Museum of Comparative Zoölogy at Harvard 
College. 
Annual Report. 1890/1891 — 1892/1893. 
Bulletin. Vol. XXI, N. 3—5; XXII, N. 1—4; XXIII 
N. 2—6; XXIV, N. 1-7; XXV, N. 111. 
Bulletin. (Geological Series). Vol. II, N. 10-14. 
Cincinnati. — Museum Association. 
Annual Report. 1890—1893. 
Catalogue of Oil Paintings and Sculpture in the Museum. 
1892. 
Halifax (Nova Scotia). — Nova Scotian Institute of Science. 
Proceedings and Transactions. Vol. VII, Part III-IV: 
Second Series. Vol I, Part I-II 
Milwaukee. — Public Museum. 
Annual Report. 1891/1892 — 1892/1893. 
Philadelphia. Academy of Natural Sciences. 
Proceedings. 1890—1893, Part I-II 
San Francisco. — California Academy of Sciences. 
Proceedings. Second Series. Vol. II. 
Occasional Papers. III-IV. 
St. Louis. — Academy of Science. 
Transactions. Vol. VI, N. 1-8. 
— Missouri Botanical Garden. 
Annual Report. 1891—1892, 
