1891.] 
Index. ix 
INDEX. 
2 a t77: 
violæ, 779. 
eid: 
African Travel, 836, 839, 840. 
Alvarenga Prize, 696 
Anoplonassa posos 700. 
Arachnida, 356. 
Archaster bairdi, 185. 
Archæoceti, 601. 
re copa Ppa 55. 
Archeol ogie: cal Association of the Uni- 
versity 0 of Pen na., 59. 
oe Specimens from Totten- 
kee eee of the Rocks of the 
ax, 
Arfvedsoni te, 74, 1 
Ari. purpurea, 182. 
Arius baronii, 771. 
tarde 
Arsenic a advil, 1076. 
Arnot , 59. 
piia ri 73. 
re 1076, 1193. 
Artemisia ee 
Sethian antiqua, 132. 
Arthur, J. C., Apparatus for Vegetable 
ts $ 
Ascent of Mount Elbruz, 66. 
Ascent of Finisterre Mountains, 65. 

Ascent of Ixtaccihuatl, 763 
Ascent of Man, F. H. Ba ker, 975. 
Ascent of Nevada de Toluca, 764. 
atide, 
PEAS thelypteri is, 77. 
Asp m filix-foemina, 77. 
hk . C. Douls, 64. 
Assimilation of Carbon by recs Plants 
ertain Organic Compounds, 
EAA of American Agricultural 
Colleges and Experiment Stations, 
1 
Association. of American Anatomists, 
212. 
Association * Sci gee cai 1170. 
Ast 85 
Astrogonium 
peta 573. 
Astrophyton esar og 185. 
oscopus anoplus, 375, 538. 
Atlas of os Plants, 475. 
Atriplex hor 
petina etda of of Mesta in the Paris and 
Hempstead Beds, 
rving the Purity of 
the pe erat Bison, 787. 
Autotomy in the Crab, E. i Andrews, 
138. 
Avalanche i in onig ase 

nana megaterium, 777. 
, 983. 
Bacterium jalani, 932, 933. 
osteophilum, 932, 933. 
iticum, 932. 
‘termo, 958. 
erpa ase Anemones, 80. 
Bahrein Islands, 266. 
Bailey’s Eron of Carex, Bessey, 78. 
