INDEX. 353 
Saltpetre, v., 214, 215 
Saltville, W. Va., gypsum and salt, 
Tverd 
Salvelinus, xii., 139 
Salvia balloteflora, vii., 13 
Texana, viii., 13; ix., 185 
Samarium, v., 181-200 
Sambucus glaucus, viii., 80 
Sam’s Point, N. Y., elevated ter- 
races at, lil., 27 
glaciation at, iii., 26 
Samuel, Mark, elected 
member, xili., 23 
San Carlos mine, ii., 94, 95 
Sand, microscopic examination of, 
iii., 64-75 
of Sahara, iii., 64 
sonorous, iii., 72-76 
musical, x., 28 
storms, 1x., 115 
Sands, iron, concentration of, ii., 
7, 8, 14-17 
Sahara, ii., 148 
sonorous, ii., 148 
ocean, river and desert, iv., 3 
Sandstone, ii., 68, 72, 117-120, 122- 
127 
in northern Texas, i., 15-19 
Sandstones at Balcony Falls, v., 219, 
220 
decay in, v., 13, 59, 61, 62 
in San Juan Mts., v., 122-126 
Chemung, with screw-like casts, 
lii., 33, 34 
head from Staten Island, iii., 81 
leaf bearing, iii, 30, 31 
used for building in New York 
City, iv., 57 
San Francisco, forest, vili., 78, 79, 
80 
Mts., viii., 76, '77, 78, '79, 80 
flora of, viii., 61-81 
musical sand at, x., 32 
San Juan, exploring expedition, v., 
0 
resident 
Mts. of Col., v., 121-130 
Sanitary chemistry, v., 198 
influence of vegetation in cities, 
v., 264 
Sankaty Head, Post Pliocene, xv., 
10 
Deposits, Mollusca, xv., 12 
Santa Barbara, musical sand at, x., 31 
Saturnina (bombycina), xiv., 54 
Saurians, gigantic, ix., 25 
Saurothera bahamensis, x., 52 
Sapindus marginatus, ix., 183 
Morrisoni, xii., 235 
Sapium (2?) annuwm, vii., 14 
Sapphire, iii., 53, 107 
artificial, vi., 8 
from Ceylon, i., 129 
yellow, xi., 58 
Sap-sand in maple juice, i., 168 
Sarcostemma cynanchoides vii., 11 
Sargasso Sea of Atlantic Ocean, iv., 58 
Sargassum bacciferum, iv., 58 
Sassafras, iii., 41, 47, 94, 96 ; v., 136 
acutilobum, xil., 236 
Satellite, of Jupitur, xii., 27 
Satellites of Mercury, v., 247 
of Venus, v., 249 
of Mars, v., 240, 253 
of Jupiter, v., 252, 253 
of Uranus, v., 252, 253 
of Saturn, v., 252, 253 
of Neptune, v., 253 
Satin-spar, viii., 2 
Saturn, v., 252 
crape ring of, xii., 218 
Saturnia (sarnia) Ceeropia, ii., 117 
Scandium, y., 181, 183, 200 
Scapolite, v., 75; viii., 162 
Scenery of Iceland, viii., 184 
of the Rocky Mountain Parks, iii., 
108 
Staten Island, v., 228 
Schaefferia cuneifolia, vii., 8 
Schorlomite from Maine, iv., 25 
Schermerhorn, Wm. C., elected resi- 
dent member, xi., 25 
Schistose rocks in Adirondacks, v., 72 
Schists of S. E. Penna, vili., 49, 50. 
Schizoneura laticostata, v., 17 
planicostata, vi., 126 
Schkuhria Hopkirkii, viii., 78 
Schmidtella cambrica, xiv., 137 
Schoenus nigricans (new), ix., 14 
Schorlomite, viii., 162 
School children, results of measure- 
ment, xv., 155 
Schrankia angustata, vii., 9 
Schreibersite, vi., 76, 145 
Science of mechanics, historical 
sketch of development, xiv., 64 
Scientific Alliance, xiv., 78 
of New York, xii., 1, 137, 151 
foresting, vili., 32 
