340 
New York glaciation, i., 24-31, 57 
gold deposits, i., 1 
Tsland, glaciation, i., 30 
Laurentian age, i., 57 
Island, mineralogy, iii., 22, 48-50 
Island, rock exposures on, x. , 113 
Mineral Club, vi., 160 
Mineralogical Club, Viii. aie Has 
1K, 140, 208 
State Forestry Association, ix., 97; 
vili., 37, 38-40 
Minerals, iii., 22-23, 34, 48-50 
Obelisk, xii., 188 
State Medical Association, viil., 16 
New Zealand, minerals of, xv., 185 
Niagara, Preservation of Falls, iv., 
54 
Nicaragua canal-route, viil., 165, 
168, 169 
Nicholson pay ement, v., 116, 120 
Nickel, in meteorite, vi. 5 92 
Metallurgy of, v., 1 92 
Mines at “Lancaster, Pa., Xiil., 205 
Nicotiana attenuata, i., 8 
repanda, vii., 12 ; viii.; 12 
Nicotine, v., 195 
Nierenbergia anomala, vii., 12 
Nile, scientific jottings on the, ix., 
110 
physical geography of, ix., 116 
temperature on the, ix., lil 
rain-fall on the, ix., 113 
Nitric acid, v.,.188, 193 
oxide, v., 190 
Nitrogen, v., 185-195 
liquefaction of, 190, 191 
Nitrous oxide, early experiments 
with, viii , 15, 16 
Noeeggerathia, iii., 47 
Noctiluca, v., 15, 16 
Nocturna, xiv.,; 56 
Nohili, x., 29 
Nomenclature, 
180, 193 
Nominations of officers, x., 57 
Norites, xii., 71 
Normal time system, v., 158-162 
North America, ancient glaciation in, 
li., 155-159 
Caribs in, ii., 142 
alternations of temperature, 
exhaustion of soil, iii., 16, 17 
glacial epoch in, iii., 102 
Chemical, v., 179, 
iii., 
INDEX. 
glacial erosion in, iii., 51, 52 
singing braches of, ili., 72-76 
skill of prehistoric races of, iii., 
15 
Cretaceous flora of, v., 133-137 
North American amber, viii., 157, 
158 
North Atlantic Ocean, Age of, v., 
i 
North Carolina, emeralds, i., 101- 
105 
fluid bearing quartz crystals, i., 
131-136 
stone implement, i., 85 
amber, ii., 86 
gold, ii., 79 
ores, ii., 149, 150 
minerals, iii., 12, 13, 37, 38, 50, 53 
gold of, viii., 139, 140 
minerals of, viii., 160, 161 
tin deposits of, viii., 136-151 
Northrop, Dr. John I., obituary no- 
tice, x., 120 
death of, xi., 1 
memorial of, xi., 9 
North Pole, discovery of, i., 46-48 
Norwegian glaciers, amount of ero- 
sion by, iii., 52 
Norwegium, v., 200 
Notation, chemical, v., 102, 106 
Notes, chemical, v., 200-202 
geological, etc., v., 215-223 
mineralogical, v., 223 
on local mineralogy, v., 121 
on ala from the West, v., 
213, 21 
on the sold cure, xi., 151 
on a nickel mine at Lancaster, 
Pa., xiil., 205 
Trip i in Oaxaca, Mex., xiii., 204 
Trip to Cornwall Tron Mines, xiii., 
205 
petrographical, xi., 156 
Nothoscordum striatum, vii., 14 
Notice of fossil fishes (title), v v., 281, 
memorial, ix., 75 
Notices, coleopterological, No. III, 
xi., 2; No. TV, =1.jd25 
Nova Scotia stone, durability of, ii., 
124-125, 136 
Novus orbis, vi., 60 
Nuceleolites erucifer, i., 
Nuggets of gold, ii., 79 
Nugget of silver in Arizona, xv., 191 
12, 13 
