CONTENTS. Vil 
NUMBER CVILI. 
P: 
ART, spe —History ~— Methods of Paleontological Discov- 
ery; by MARSH sD ieicwu cw woes 323 
XLIL L_Diamagnetie ‘Conmeaas . Bismuth and ‘Cale-spar it in 
he <8 ute Measure; by H. A. Rowtanp and W. W. 
ES, ee es Ee Fe Oo 360 
XL. -VapokDesaaian of Peroxide of Nit itrogen, Form 
oe d, ee Acid, and Perchloride of Phosphorus; - 
J. Wir. Ss, EERE AS A ROSEN IE 371 
XLIV. Beha: Inequality i in n the Moon’s Motion produced 
by the oblateness of the Earth; by J. N. SrockwEtt,.. 387 
we steel: of two new ‘Anberoida by C. H. F. Pr ETERS, 389 
Light; ; by A. A. Micuzxson, sone BOO 
XLVIL—The Kane Geyser Well; by CA. a . 894 
XLVIII.—Resonant Tuning Fork; by TOA. Emon, 3.2323 395 
XLIX.—New Jurassic Mammals; by 0,0, Mizes: Sry Sage 396 
SCIENTIFIC INTELLIGENCE. 
ager ohet and Physics. —New method of preparing Hyponitrous acid, Zory, ise 
Direct union of Calcium oxide and Carbon dioxide, BrryBauM 
Novw. Element, Senidtsis, € CiEvE, 399.—New Elements, Thuliu Zi 
CLivE, otes on the two new Elements anno éve, Boni 401, 
—Introduction to the Practice “é Commercial Organic ec Analysis, : 
eat, ‘i. 
: Units and sy bie pee a J. D. Everett, 405.—Elementary Les- 
sons oe Soun d, W. H 
Geology and Mineralogy. erat us sani along the Cascade Mts. of Oregon, T. 
CONDON, ing .—U. 8. Geological and Geographical Survey of ee Territories, 
J. Car 
under F. V. HaypeEn, ae a matopora, H. RTER: Note on the Section 
by T. x elson cs s. ae RRETT: Geological is of the State of Ohi 0 0. 5. 
NEWBERRY, al Survey of Cana HITEAVES, : ac- 
ture and Afinitios of et Tabulate Corals of the ait Period, H. A. Nicu- oS. 
OLSON: Journal of ee ociety of Natural History: ee! Red Fone netics 
of Western Euro . GEIKIE: Outlines of Field Geology, A. Gerk 
and Awards, Gren L E aatslieiad Exhibition, 41 11.—Strueture et th ‘Ooncot 
tion Minéra ralogique du Coti ticule, A. RENARD: Minerals of some of the Apatite- 
bearing Veins of Ottawa County, Quebec, B. J. HARRINGTON, 412.—Die Pseudo- 
morphosen des —s oo. Th: ae 414. 
a be ¥ Maxi Flora ientalis, BoissieR, 415. Ha Di eaions 
fer Liquide Colorati ei Fiori, P. A. Sace. : Neue Beobach — tiber 
Zellbildung und Zelltheilung, E. SrraspuRGER: Arnold Arboretum, 41 
—J. G. 
AGARDH: P. vAN TregHem: O. BEooaRI: Die Spongien des Sein von 
ico, LT. 
Miscellaneous Scientific Intelligence. —Catalogue of of Scientific Serials, S. H. Scupp: 
Sketch of Dickinson College, Carlisle, Pa., C. F. Hntes, 417.— = eehuieeric 6 of the 
Satellites of a comasmuan pion is} Luppock: Shell Mounds of Omo 
E. 8. Morse, 4 
