INDEX. . 299 
Aparchites secunda, xiv. . 136 
Apatite, ii., 3, 14, 16, 147; v., 75, 
232 vilieg Oey She. 213, 2211 5 
viii., 50 ; ix., 148 
Apgar, DeWitt J., elected resident 
member, xi., 25 
Aphanostephus humilis, vii., 10 
Aphyllum multiflorum, vii., 12 
Apium echinatum, vii., 10 
Popei, 10 
Aplodontia, new species from Cali- 
fornia, v., 179 
Aplodontia major, v., 179 
Aplome Garnets, iv., 42 
Aplopappus croceus, vili., 80 
Apophyllite, i., 129, 130; i1., 
42; vii., 231; viii., 50, 57 
Appalachian Valley, v., 215, 216, 217 
Apparatus, distilling, xii., 54 
Applications of electricity. x., 116 
Aquamarine, ii., 117; ix., 151 
from 28e York City, v., 25, 75 ; 
Vitis) Ondo, 60): 1x... Loi 
Aquilegia canadensis, sas 8 
cerulea, 8 
Ara militaris, v., 175 
Arabia and Afghanistan, 
sand-hills, ii., 98, 99 
Arabis Douglassii, ix., 8 
rhomboidea bulbosa, ix., 8 
rhomboidea purpurea, ix., 8 
Arachnida, v., 49 
Arachnodiscus, xil., 220 
Aragonite, iil., 7, 17, 20; 
vil., 221 
breccia, viil., 44 
coralloidal, viii., 45 
fibrous from Morrisania, iv., 78 
stalactitic, vili., 45 
Aralia, iii., 47; v., 136 
Araliopsis, xii., 236 
Araucaria, vi., 128 
Area, i1., 11 
Are light, x., 103 
lamp, x., 104 
Archean, of Blue Ridge, v., 219, 222 
rocks, v., 219, 222, 223 
strata, younger, v., 216, 233 
soe Older sven i220) 291 
SOs av, 
sonorous 
OO) 
V., 229 ; 
of Staten Island, vi., 15, 16 
plant, vii., 89 
series, vii., 39, 59, 138 
time, vii., 153 
in Essex county, N. Y., xiii., 216 
Archeology, ii., 3, 106, 110 
Archzeological discoveries, vii., 139 
of Greece, viii., 188 
Archeophyton Newberryanum, vii., 89 
Archipterigium, xii., 121 
Archives de Biologie, 133 
Archoplasm mass in Spermatogenesis 
of Lumbricus, xiii., 135 
Arctic region, warm Tertiary climate 
in, ili., 94 
Exploration of, i., 46-48 
scenery, glimpses of, ix., 156 
Arctostaphylos pungens, vili., 76 
Ardea bahamensis, x., 54 
Area of New York Island, vii., 49 
Arenaria scabrella, vili., 78 
Argemone, vili., 77 
Mexicana, vii., 7 
Argentarsenickel, ix., 152 
analysis of, ix., 152 
Argentiferous galena, x., 62 
Argentite, ili., 38, 63 
artificial, ix., 145 
Argillyte, implements of, ili., 9 
Arisema dracontium, i., 182 
Aristida, viii., 77 
Aristolochiacez, vii., 13 
Aristolochia longiflor a, vil., 13 
Arizona agatized woods, v. , 9-11 
minerals from, iii., 72 
minerals, viii., 11, 14, 45, 46, 161 
aragonite, 45 
azurite, 12, 45 
calco-malachite, 46 
chaleocite, 45 
cuprite, 13 
malachite, 12, 45 
native silver, 11 
stromeyerite, 11 
flora of, viii., 61, 81 
new species from, vili., 
73 
plants, enumeration of xiv., 21 
pumice tuff, i., 52 
silic. woods, vi., 165, 166 
Arkansas, minerals from, ili., 17, 18 
Arkose beneath the Palisades, Nid, 
ii., 117-120 
Armor of ancient fishes, ii., 53-55 
Aromatic series, new derivatives of, 
obo erm hope 
Arrangement of atoms, v., 199 
Arrow-heads near Trenton, N. J. 
AES 
ry we 
65, 71, 72, 
