(755 ) 
Cambridge. Museum of compar. 20ülogy. — Observatory. 
Chicago. Field Columbian Museum.— Yerkes Observatory. 
Cincinnati. Lloyd library. 
Columbia. University of Missouri. 
Cordova. Academia de ciencias. 
Granville. Denison University. 
Halifax. Nova-Scotian Institute. 
[thaca. Journal of physical chemistry. 
Laurence. The Kansas University. 
Lima. Cuerpo de ingenieros de minas. 
Lincoln. University of Nebraska. 
Madison. Wisconsin Academy. 
Mexico. Observatorio. — Sociedad de historia natural. 
Montevideo. Universidad. 
Mont-Hamilton. Lick Observatory. 
Montréal. Natural history Society. 
New-Haven, Journal of sciences. 
New-York. Academy of sciences. — Mathematical Society. 
— Museum of natural history. 
Para. Museu. 
Philadelphie. Academy of natural sciences. — Franklin 
Institute. — The american Naturalist. —  Philosophical 
Society. — Historical Society. 
Rochester. Academy of sciences. — Geological Society. 
Saint-Louis, Academy of sciences. 
Salem. Essex Institute. 
San-Francisco. California Academy of sciences. 
Santiago de Chili. Société scientifique. 
Toronto. Canadian Institute. 
Urbana. [linois State laboratory. 
Washington. Department of Agriculture. — U. S. national 
Museum. — Smithsonian Institution. — U. S, Geological 
Survey. 
1905. — SCIENCES. 52 
