CONTENTS. Vv 
Geoloyy and Mineralogy.—Terraces and Pcemaceg ego lines ce Strandlinien ") 
KARL PETTERSEN, 149 ee d from some “Forts vitrifiés 
France, M. Davpree, 150.—Pre-glacial oo of the rane ot Lake Erie, J. W. 
SPENCER, 151. —Laccoliths ( Aes Uaccolites) in Japan, G. H. Kinanan: Iron Ore 
of Iron Mi ne bee Cumberland, R. oe tens ie field, Texas: Report of the 
Geolo ogic al Survey of Pen “gle ania, F. PLATT J. P. WeTHERELL, 152.—Land- 
plants i in the Midale Sacdhgee of N orth, Wales, “TL Hicks: Mee tbat a Mg Per- 
mian taba oT E. D. ek Life- History of Spirifer is 
WILLIAM : Geological ‘Seles of Peas. Optical Characters a ~Oryetiliinis 
System "of some im rae coors 8, 153. a Spall of new minerals, 255.— 
Dawsonite from Tuscany: Vanadium Minerals from oc Zinn, eine geol- 
ogisch- aoriewaon niche. Moncouihe, E. Rey 57. 
sein and Zoology.—Marine Algz of New England, w. G. Fartow, 158.—Das 
m de es Medusen von E. bigs kel, 160. — Reptiles and Fishes in the Museum 
of ‘Com mp. Zoology, 8. GARMA : Dredging along the Fel a of U 8. by 
Steamer Blake, 162. HC with note on Toxodon, E. D. Copz, 163. 
schon: BG nmmaba ye Spectrum of Comet 1881, 6, W. east Notice of the 
Comet. . Burton, 163.—Observations on the Comet, W. H. M. Curistte, 164, 
Micitcaous Scientific pipe Aga Tg oan oh Polar ore s occupied by the 
Signal Service, 164.—Smithsonian Institu Endow merican 
Chemical Bodoni: 165.—J. Lawrence Smit th’ 8 Collection of arnicrale nS Meteor- 
ites, 166. Obituary— Achille Delesse: Deville, 
NUMBER CXXIX, 
Page 
Arr. XXITX.—Benjamin Peirce, - 
XXX.—Emerald-green Spodumene from Alexander County, 
North Carolina; b ‘ 
sie —Objects and cocoa of Soil Analyses ‘by 
E. W. biasing Beek on ee ee 
XXXIL — Mineralogical Notes; by B. Stiriman, ......-. 25 
XXXIIL—Liquefaction and Cold pred ced by the miuruat 
reaction of Solid Substances; by Evetyn M. Watron,. 206 
XXXIV.—Spectrum of Arsenic ; : by ive Wi Huntineron. 
WEED 2 IAGO BY foo i I we ne oh an ne we eee 214 
SCIENTIFIC INTELLIGENCE. 
gee Abe and Ek ae eich ous Oxidation of Mercury and other Metals, 
—Hesperidin, a Glucoside of the Aurantiacew, Tiemann and 
Wi a8. ser fan, ‘of Volatile Organ Base es, MEYER and TREADWELL: 
Phot ometry - the Fraunhofer lines, Vir : Intensity of Sound, OVERBE 
9.—Reversal of the e lin es of Metallic opiate Liverne and Dewar: Change — 
SS ae Poynting, 220. 
Geology and Mineralogy.—Geology of the Province of Minas Geraes, 221 Prog: 
gp of the Eruption on Hawaii, 226.—-Glacial drift on Mt. K 
E N, : 0. f i i 
Fe 
bee 
sil Plants from the Lignite Tertiary rhein hn Roches Percées, Souris River, 
Manitoba, J. W. Dawson, 233.--North Am n Mesozoic and Cenozoic Geol- 
rom on ertoon System of Scotlan 
= emer. 
pa aye Loxolophodon and Uintatherium, H. F, OsBorn : Vanadinite in “Arizona, a 
W. P. Buaxg, 23 
