(501   ) 
Sauiiàfjo. 
Observatorio  nacional,  B. 
Universidatl  de  Chile.  BM. 
CONT%-KICA. 
San  José  .  .  .  .  Lick  Observatory  MountHamilton(California).  BM. 
Albanij  .  • 
Baltimore. 
lioston   .  . 
Cambridije.  .  . 
(iranville,  Ohio. 
lowa-CUy  .  .  . 
Lincoln  .  .  .  . 
New-Haven.  .  . 
New-  York 
Philadelphie 
l'.TATN-U.l'IN     U    t  1ir.lllQl]K. 
New-York  State  Library.  BM. 
John  Hopkhis  Universily.  BM. 
American  Academy  of  arts  and  sciences.  BM, 
Natural  Iiistory  Society.  BM. 
Harvard  Collège  Observatory.  BM. 
Muséum  oF  comparative  zoology.  BM. 
Denison  Universily  laboratories.  B. 
University.  B. 
Universily  of  Nebraska.  B. 
Connecticut  Academy  of  sciences.  BM. 
American  Journal  of  sciences  and  arts.  BM. 
Observatory  of  Yale  University.  B. 
American  geographical  and  statistical  Society.  B. 
New- York  Academy  of  sciences  (ci-devant  :   Ly- 
ceum  of  natural  history),  B, 
Academy  of  natural  sciences,  BM. 
American  naluralist.  B. 
American  philosophical  Society,  BM. 
Franklin  Instilute.  B. 
llistorical  Society.  BMCKN, 
Second  geological  Survey  of  Pennsylvania.  BM. 
Wagner  free  Instilute  of  science.  B. 
