CONTENTS. vii 
Page 
Fourth Report of the Committee on Steamship Performance. (Plate IIT.) 282 
On the Fall of Rain in the British Isles during the Years 1860 and 1861. 
Sy G. J. Symons, MIBIMS! 4(BlatesH A) Sof. cicero ne 293 
On Thermometric Observations in the Alps. By J. Barz, M.R.I.A., 
RRB Qin, | FREE nents Seem erene ecw ae 363 
Report of the Committee for Dredging on the North and East Coasts of 
Scotland, By J. Gwyn Jerrrrys, FRG.) oi ea ce eee eee 371 
Report of the Committee, consisting of the Rev. W. Vernon Harcourt, 
Right Hon. Joseph Napier, Mr. Tire, M.P., Professor Curisrison, 
Mr. J. Heywoop, Mr. J. F. Bareman, and Mr. T. Wesster, on Tech- 
pre 
nical and Scientific Evidence in Courts of Law ..-..........02e00% 373 
An Account of Meteorological and Physical Observations in Eight Bal- 
loon Ascents, made, under the Auspices of the Committee of the British 
Association for the Advancement of Science at Manchester, by Jamxs 
GuatsHER, F.R.S., at the request of the Committee, consisting of 
Colonel Syxes, Mr. G B. Arry, Lord Wrorrrstey, Sir D. Brewster, 
Sir J. Herscuet, Dr. Luoyp, Admiral FirzRoy, Dr. Lrr, Dr. Rosryson, 
Mr. Gassror, Mr. Guatsuer, Dr. Tynpatx, Mr. Farrparrn, and Dr. W. 
MEER eR SS Pee Ped te Sort toe dees alah wae ls wits RS 376 
Report on the Theory of Numbers.—Part IV. By H. J. Srepnen Smiru, 
M.A., F.R.S., Savilian Professor of Geometry in the University of 
IE ho. oe ats Bhat Cy re wha 9 SS ered ea eile BL aya IK Aneene yney 503 
APPENDIX I. 
Errata in Report of Observations of Luminous Meteors, 1861-62 .... 5 
bo 
“I 
