INDEX. 
Numismatics, contributions of al- 
chemy to, ix., 71 
Nuphar parvulum, iii., 43 
Nutation of earth, vi., 92, 133, 134 
secular changes, vi., 131-134 
Nyctaginez, vii., 13 
capitata, vii., 13 
Nycticorax nevius, x., 52 
Nympheeacee, ili., 43, 45 
Nymphza pgymea ix., 7 
tetragona, ix., 7 
Oakesia puberula, ix., 13 
sessilifolia nitida (new), ix., 13 
Oak-leaves of Alaska, large, iii., 95 
Oaxaca, Mex., notes on a trip in, 
xiii., 204 
Obelisk, New York, xii., 188 
preservation by paraffine, v., 56, 
63-71 
Oberstein, Germany, lapidary work 
at, lii., 62 
Obituary notice of Prof. Felipe Poey, 
x., 56 
of Dr. J. I. Northrop, x., 120 
Obolella nitida, xiv., 125 
Obolus pristinus, xiv., 121 
puleher, xiv., 115 
Observatories (astronomical ),v., 260, 
261 
time service for, v., 158-162 
Observations for variations of lati- 
tude made at Columbia College 
and the Royal Observatory at 
Naples, xiv., 7 
on comet of 1892, xi., 120 
on Gould’s comet, ii., 18-23 
of transit of Venus, ii., 51, 52 
of Greenwich and Kew, xii., 27 
time-signals from, i., 86, 87 
of Columbia College, transit fac- 
tors for, xi., 41 
Obsidian, ii., 36; vi., 122: viii., 30, 
162 
arrow heads in Oregon, iii., 82 
in volcanic ash, iii., 64 
implements from Guatemala, i., 
105 
in rhyolite, v., 214 
Occurrence of a large marine verte- 
brate, etc., v., 165-168 
Ocean holes, x., 11 
river and desert sands, iv., 3. 
Ochre, v., 217 
541 
Octocoris alpestris, ix., 129, 131 
adusta (new), ix., 131 
avenicola, ix., 131 
chrysolema, ix., 131 
Giraudi, ix., 131 
leucoleema, ix., 131 
Merrilli (new), ix., 131 
pallida, ix., 131 
praticola, ix., 131 
rubea, 1x., 131 
strigata, 1x., 131 
Oculus beli, vili., 159 
mundi, viii., 159 
(Enantholaniline, ii., 62 
(Enantholnaphthylamine, ii., 62 
(Enantholxylidine, 1i1., 62 
(Enothera, viii., 77 
cespitosa, 1,, 8 
Hartwegii, vii., 9 
rosea, Vii., 9 
speciosa, Vii., 9; ix., 184 
Office of parenchyma of leaf, iii., 39, 
40, 44-46 
Officers, election of, iii., 70, 71; vi., 
INOS vane 129 xe, LOO Sexier ie 
of Corresponding Secretary, v., 162 
Recording Secretary, v., 29, 162 
Librarian, v., 1, 20, 164 
Treasurer, v., 163 
reports of (see contents) vi. ; viii., 
for 1894-95, xiii., 155 
of Geological Section, re-elected, 
xiii., 203 
nomination of, x., 57 
Ohio, coal beds, ii., 87 
sandstone, durability of, ii., 125, 
126, 136 : 
Oil fields of Colorado, viii., 25-28 
Oils, see Petroleum, viii., 
of California, viii., 25 
of Canada, vili., 25 
of Colorado, viii., 25-28 
of India, viii., 28 
of Italy, viil., 25 
of Ohio, vili., 25, 28 
of Pennsylvania, viii., 25 
of the Caspian, viii., 28 
Oil testing, commercial, xi., 126 
Ojrat Ramadan, ix., 23 
Oleacez, vii., 11 
Olenellus, not in Protolenus Fauna, 
xiv., 150 
Oligoclase, vi., 77; viii., 2 
from New York Island, v., 75, 223 
