INDEX. 
Native gold, viii., 7, 139, 140, 160 
mercury, Vili., 22 
silver, viii., 11, 160 
iron in basalt, iii., 104 
Natrolite, ii., 89; ix., 143 
from Weehawken, N. J., i., 130 
Natural Bridge, Virginia, v., 218 
dyes as applied to wool, xi., 48, 
157 
Flora of Bronx Park, xv., 62 
history, bibliography of, x., 71 
science, teaching in schools, ix., 37 
Natural Science Association of Staten 
Island, viii., 177, 178 
Field day, iv., 5 
Nautilus, i., 94; viii., 115 
De Kayi, ii., 12 
Navieula, ix., 35; xii., 220; xiii., 101 
viridis, vi., 50 
Neanderthal skull, viii., 21 
Nebule, v., 260 
and the nebular hypothesis, ix., 
133 
Necronite, viii., 21 
Needle Mountains in Colorado, v., 
122 
Need of normal time, ete., v., 158- 
162 
Negundo, iii., 41 
Neith (supposed planet), v., 249 
Neithea Mortoni, ii., 10 
Neodimium, v., 185-200 
Nephelis, classification of, in the U. 
Shy ein Lae 
funnels and vesicles of, xiii., 206 
Nephridial structure of, in Clepsine, 
Velie 
Neptune, v., 253 
Neptunium, v., 200 
Netsinker Indian, from Manhattan 
Island, xii., 17 
Nevada, black marble, iii., 101 
minerals, iii., 72 
sonorous sand-hill, iii., 99 
mining in, i., 7 
pumice tuff, i., 51 
sulphur deposits, i., 172-175 
New beetle, viii., 117 
Newberry, John Strong, memoir of, 
Sahl 5p 
bibliography of, xii., 173 
New Brunswick, volcanic rocks, 
xiv., 216 
New chemical products, v.; 192 
339 
organic, v., 194-197 
cladodont from Ohio, 
xili., 115 
New Durham, sandstone of, ii., 117— 
120 
‘* New earths,’’ v., 200 
New elements, v., 181-200 
form of Bunsen battery, x., 114 
forms of Coccosteids, xiii.,’ 176 
forms of Wollastonite from N. Y., 
xili., 146 
fungus on silicitied wood, xiii., 201 
method of making fine bolometer, 
Waverly, 
xiii., 171 
protecting houses from lightning. 
sation FAL 
minerals, described, vili., 8, 46, 
56, 185 
plants from Arizona, viii., 65, 71, 
72, 73 
from South America, viii., 3 
red sandstones, y., 12 
sphermophile, viii., 41 
species of bird, v., 17 
from Yucatan, v., 55 
species fossil fishes, v., 333 
substances, v., 194-199 
Newfoundland, Cambrian 
176 
New Jersey, amber, ii., 13, 85-87 
franklinite ores, ii., 26-35 
marl-belt, ii., 9-13, 85 
shell mounds, ii., 143 
copper ores in, ili., 18, 19 
gravels at Trenton, iii., 7-12 
minerals of, iii., 2, 18-19, 50, 78 
sorghum industry in, iii., 5, 6 
Cretaceous of, vili., 47, 178, 179 
preglacial and glacial drift, iv., 26 
New Mexico, honey ants of, iii., 103 
floral characters of, viii., 76-81 
table land of, viii., 77 
Newport, R. I., Carboniferous area 
at, iv., 76 
New Providence, x., 5 
New York and Brooklyn bridge 
li-, 72 
building stone, ii., 67-70, 120-138 
City and neighborhood physical 
geography, xv., 123 
city water supply of, viii., 117-125 
New York County, minerals of, viii., 
of, vill, 
New York, drift hilis, i., 77-80 
