( xxn ) 
DANEMARK. 
Tidskrift for Mathematik : D' H. G. ZEUTHEN, 
professeur à l’université. 
Académie royale des sciences. 
Copenhasuce. 
SUISSE. 
Naturforschende Gesellschaft. 
Société helvétique des sciences naturelles. 
Berne. 
Neuchâtel. — Societé des sciences naturelles. 
Naturforschende Gesellschaft. 
Schafhouse. 
AMÉRIQUE. 
ÉTATS-UNIS. 
American Association for advancement of sciences. 
Baltimore. 
American Journal of mathematics. (Johns Hopkins 
University.) ; 
Boston. American Academy of arts and sciences. 
Soctely of natural History. 
Cambridge. — Museum of comparative zoology. 
Columbus. —- Ohio State agricultural Society. 
Madison. 
Wisconsin Academy of sciences, letters and arts. 
New-Haven. — Connecticut Academy of arts and sciences. 
Newporé. 
Orleans County Sociely of natural sciences.” 
New-York. — Academy of sciences. . 
Philadelphie. — Academy of natural sciences. 
American philosophical Society. 
Wagner Free Institute of sciences. 
Portland. — Vaiural History Society. 
Salem. — The American Naturalist. 
Essex Institule. 
Peubody Academy of sciences. 
