689 
Dredging on the North and East Coasts of Scotland ;—W. Fairbairn, on the Resist- 
ance of Iron Plates to Statical Pressure and the Force of Impact by Projectiles at 
High Velocities ;—W. Fairbairn, Continuation of Report to determine the effect of 
Vibratory Action and long-continued Changes of Load upon Wrought-Iron Girders ; 
—Report of the Committee on the Law of Patents ;—Prof. H. J. 8. Smith, Report on 
the Theory of Numbers, Part III. 
Together with the Transactions of the Sections, Mr. Fairbairn’s Address, and Re- 
commendations of the Association and its Committees. 
PROCEEDINGS or tas THIRTY-SECOND MEETING at Cam- 
bridge, October 1862, Published at £1. 
CONTENTS :—James Glaisher, Report on Observations of Luminous Meteors, 1861- 
62 ;—G. B. Airy, on the Strains in the Interior of Beams ;—Archibald Smith and F. 
J. Evans, Report on the three Reports of the Liverpool Compass Committee ;—Report 
on Tidal Observations on the Humber;—T. Aston, on Rifled Guns and Projectiles 
adapted for Attacking Armour-plate Defences ;—Extracts, relating to the Observa- 
tory at Kew, from a Report presented to the Portuguese Government, by Dr. J. A. 
de Souza ;—H. T. Mennell, Report on the Dredging of the Northumberland Coast 
and Dogger Bank ;—Dr. Cuthbert Collingwood, Report upon the best means of ad- 
vancing Science through the agency of the Mercantile Marine ;—Messrs. Williamson, 
Wheatstone, Thomson, Miller, Matthiessen, and Jenkin, Provisional Report on Stan- 
dards of Electrical Resistance ;—Preliminary Report of the Committee for investiga- 
ting the Chemical and Mineralogical Composition of the Granites of Donegal ;—Prof. 
H. Hennessy, on the Vertical Movements of the Atmosphere considered in connec- 
tion with Storms and Changes of Weather ;—Report of Committee on the application 
of Gauss’s General Theory of Terrestrial Magnetism to the Magnetic Variations ;— 
Fleeming Jenkin, on Thermo-electric Currents in Circuits of one Metal ;—W. Fair- 
bairn, on the Mechanical Properties of Iron Projectiles at High Velocities ;—A. Cay- 
ley, Report on the Progress of the Solutionof certain Special Problems of Dynamics; 
—Prof. G. G. Stokes, Report on Double Refraction ;—Fourth Report of the Committee 
on Steamship Performance ;—G. J. Symons, on the Fall of Rain in the British Isles 
in 1860 and 1861 ;—J. Ball, on Thermometric Observations in the Alps ;—J. G. 
Jeffreys, Report of the Committee for Dredging on the North and East Coasts of 
Scotland ;—Report of the Committee on Technical and Scientific Evidence in Courts 
of Law ;—James Glaisher, Account of Hight Balloon Ascents in 1862 ;—Prof, H. J.8. 
Smith, Report on the Theory of Numbers, Part IV. 
Together with the Transactions of the Sections, the Rev. Prof. R. Willis’s Address 
and Recommendations of the Association and its Committees. 
_ PROCEEDINGS or tar THIRTY-THIRD MEETING, at New- 
castle-upon-Tyne, August and September 1863, Published at £1 5s. 
CONTENTS :—Report of the Committee on the Application of Gun-cotton to War- 
like Purposes ;—A. Matthiessen, Report on the Chemical Nature of Alloys ;-—Report 
of the Committee on the Chemical and Mineralogical Constitution of the Granites of 
Donegal, and on the Rocks associated withthem ;—J. G. Jeffreys, Report of the Com- 
mittee appointed for exploring the Coasts of Shetland by means of the Dredge :— 
G. D. Gibb, Report on the Physiological Effects of the Bromide of Ammonium ;—C. K. 
Aken, on the Transmutation of Spectral Rays, Part I.;—Dr. Robinson, Report of the 
Committee on Fog Signals ;—Report of the Committee on Standards of Electrical 
Resistance ;—E. Smith, Abstract of Report by the Indian Government on the Foods 
used by the Free and Jail Populations in India ;—A. Gages, Synthetical Researches 
on the Formation of Minerals, &c.;—R. Mallet, Preliminary Report on the Experi- 
mental Determination of the Temperatures of Volcanic Foci, and of the Temperature, 
State of Saturation, and Velocity of the issuing Gases and Vapours;—Report of the 
Committee on Observations of Luminous Meteors ;—Fifth Report of the Committee 
on Steamship Performance ;—G. J. Allman, Report on the Present State of our Know- 
ledge of the Reproductive System in the Hydroida ;—J. Glaisher, Account of Five Bal- 
ant i made in 1863 ;—P, P. Carpenter, Supplementary Report on the Present 
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