see 
Vill CONTENTS. 
Biscnor: On the magnetic period depending on the Sun’s retation ; by Prof. GusTAa- 
vus Hinricus, 420.—The Electric Discharge, FeppersEn, 421 —Interesting Electrical 
Phenomenon; by C. Piazz Smyru, 423. 
Mineralogy and. Geology.—On Meteoric Irons; by H. Harpincrr: Ona rtificial Anatase, 
Brookite, and Rutile; by Mr. HauTEFEvILue, 424. a Pichoneille: sprite Chladnite, 
425.—Crystals of Rhombohedral and Dimetric y biaxial, Breit- 
HAuPT: Geschichte der Mineralogie von 1650-1860 (History of anc from 1650 
to 1860) by Franz von petites Bs sas —Mineralogische Notizen by Friedrich soap Es! 
ote on the Cotopaxi and Arequipa; by J. D. Dana: nothe- 
rium an Ele iit antine Merwaial, 427.— H. von Meyer’s Paleontographia ; Siig zu 
Naturgeschichte der Vorwelt, 428. 
salt and Zoolo, eink wn ew Sas station for Heather, 428.--Icones Muscorum, or 
and Descriptions of most of those Mosses peculiar to Eastern artes America 
Chiels have not been heretofore aac by William S. Sullivant, LL.D, : Species 
Filicum of Sir W. J. Hooker, 429.—On the Skeleton of the Gare-fowl ‘ile Repnittel: 
‘and the probability of its ‘aie an extinct species; by Prof. OwEN: Synopsis of the 
Bombycide of the United States, of A. S. Packard, Ae poe of American Birds, 
etc., by Prof. Spencer F. Baird: Cryptochiton Stelleri, 4 
Astrono: onomy.—Discovery of another minor Planet, anes ie Comet II, 1864: Tempel's 
10th, 1 
4 
: 
q 
| 
ticity of Mars, and the general ee of its Surface ; by Prof. cree 435. 
Miscellaneous Scientific Intelligence —Discovery of Lake-habitations in Bavaria; by Prof. 
Desor, 437.—On Spontaneous Cicssien and semi-organized bodies; by E. Fremy, 
.—Charcoal having the solidity and texture of mineral coal formed nade pressure : 
: 
Disco 
script to Prof. Winchell’s article on the Origin of the Prairies ; ieee oe Author, 444.—. 
jet d’eau made by means of the heat which air, when er glass, derives 
from | tish 
ciation: Report to the British Association, at Bath, on a uniform system of Weights a 
and Measures, 446.—Analysis of a Hot Spring containing Lithium and Cesium in 
Wheal Clifford; by Dr. W. A. Micuer, V.P.R.S., 447.—On the Temperature of the 
Rexen; by Dr. Davy: On Crude Paraffin Oil; by Dr. B. H. Pav: German Associa- 
_ tion, 448.—White Fish of the Great Lakes of North America, 449. 
ER Alger, 449 —Capt. John Hanning Speke, 449. 
Miscellaneous Bibliography.—C —Canadian Naturalist and Geologist, 449.—Organie Philoso- 
phiyor Man's iru pace in Nata by Hven Doueary, M.D. : The Geological Maga- j 
zine. by T. Rurert Jonszs, F.G.S., etc., assisted ‘ 
: by B Henry Woopwarp, FGS.,e wes Introduetion to “The Alpine Guide;” by Joun 
‘Bann, M.R.LA., F.LS., etc.: Revision of the Polyps of the Eastern Const of the Uni- a 
ted States; Se hE Youtl, 420--Neiens of Sow Works, 451. a 
