CONTENTS. 
-An Account of Meteorological and Physical Observations in Five Bal- 
loon Ascents in the year 1863 (in continuation of Eight made in the 
preceding year), under the auspices of the Committee of the British 
Association for the Advancement of Science, by James GuaIsHER, 
F.R.S., at the request of the Committee, consisting of Colonel Sykes, 
The Astronomer Royal, Lord Wrottesley, Sir D. Brewster, Sir. J. Her- 
schel, Dr. Lloyd, Admiral FitzRoy, Dr. Lee, Dr. Robinson, Mr. Gassiot, 
Mr. Glaisher, Prof. Tyndall, Dr. Fairbairn, and Dr. W. A. Miller 
Supplementary Report on the Present State of our Knowledge with 
regard to the Mollusca of the West Coast of North America. By 
MPREEL EOARPENTER. B.A A ED), cc, seca 'e dors ops eie pl te ons) 61s ays. aie 
Report on Steam-Boiler Explosions. By Professor Arry, F.R.S., Astro- 
RRRERPR UROL, Ltt bx. 220 stk sitd-capiat opetu sn! tiulaes olanttpgs te ap loy 4 «sree ene 
Observations on the Electrical Resistance and Electrification of some 
Insulating Materials under Pressures up to 300 Atmospheres. By 
SIDER INGE Yee Welt .9o. 2 <2 5 ce erties se x ete Mattia es Caw c ee ee 
On the Construction of Iron Ships and the Progress of Iron Shipbuilding 
on the Tyne, Wear, and Tees. By Cuartes M. Parmer .......... 
On the Chemical Manufactures of the Northern Districts. By Tomas 
Ricwarpson, M.A., F.R.S.E.; J. C. Srevenson, F.C.8S.; and R. C. 
UPEEEA MEL Oy, Shscs 2, Py dns chats Sica oo) EAS ie lei eae eth 
On the Local Manufacture of Lead, Copper, Zinc, Antimony, &c. By 
T. Sopwirn, F.R.S., and T. Ricwarpson, M.A., F.R.S.E., &e....... 
On the Magnesian Limestone of Durham. By Jomn Daeuisn, F.GS., 
MEGEC a eR GRATER. MG Aes rs ols sis, o:a/ae <.ayepeteeatagsugiecals sMeieteunie «(aie 
On the Manufacture of Iron in connexion with the Northumberland and 
Durham Coal-field. By Isaac Lowrn1an Bett, Mayor of Newcastle. 
On the Manufacture of Steel in the Northern District. By Tuomas 
SS ERONECTERS VIC NUD oh che ozo) oI. «5 2) u buel sek sing ss Be Ooi SBabey vipat *nghaeL east ae, 28 
Report on the Theory of Numbers.—Part V. By H. J. Srernen Surru, 
M.A., F.R.S., Savilian Professor of Geometry in the University of 
BIOL e ghee oo Gangs ns RRR OOG CR ee OA EL) 
v 
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