243 



nometry of the Parabola, and the Geometrical Origin of Logarithms ; — R. MacAndrew, Report 

 on the Marine Testaceous Mollusca of the North-east Atlantic and Neighbouring Seas, and 

 the physical conditions affecting their development; — P. P. Carpenter, Report on the present 

 state of our knowledge with regard to the Mollusca of the West Coast of North America ; — 

 T. C. Eyton, Abstract of First Report on the Oyster Beds and Oysters of the British Shores; 

 — Prof. Phillips, Report on Cleavage and Foliation in Rocks, and on the Theoretical Expla- 

 nations of these Phenomena : Part I.; — Dr. T. Wright on the Stratigraphical Distribution of 

 the Oolitic Echinodermata ; — W. Fairbairn, on the Tensile Strength of Wrought Iron at various 

 Temperatures ; — C. Atherton, on Mercantile Steam Transport Economy ; — J. S. Bowerbank,on 

 the Vital Powers of the Spongiadae; — Report of a Committee upon the Experiments conducted 

 at Stormontfield, near Perth, for the artificial propagation of Salmon ; — Provisional Report on 

 the Measurement of Ships for Tonnage ; — On Typical Forms of Minerals, Plants and Animals 

 for Museums ; — J. Thomson, Interim Report on Progress in Researches on the Measure- 

 ment of Water by Weir Boards; — R. Mallet, on Observations with the Seismometer; — A. 

 Cayley, on the Progress of Theoretical Dynamics ; — Report of a Committee appointed to con- 

 sider the formation of a Catalogue of Philosophical Memoirs. 



Together with the Transactions of the Sections, Dr. Daubeny's Address, and Recom- 

 mendations of the Association and its Committees. 



PROCEEDINGS of the TWENTY-SEVENTH MEETING, at Dub- 

 lin, 1857, Published at 15*. 



Contents: — A. Cayley, Report on the Recent Progress of Theoretical Dynamics; — Six- 

 teenth and final Report of Committee on Experiments on the Growth and Vitality of Seeds ; 

 — James Oldham, C.E., continuation of Report on Steam Navigation at Hull; — Report of a 

 Committee on the Defects of the present methods of Measuring and Registering the Tonnage 

 of Shipping, as also of Marine Engine-Power, and to frame more perfect rules, in order that 

 a correct and uniform principle may be adopted to estimate the Actual Carrying Capabilities 

 and Working-Power of Steam Ships ;— Robert Were Fox, Report on the Temperature of 

 some Deep Mines in Cornwall; — Dr. G. Plarr, De quelques Transformations de la Somme 



-« a *|+i/?rl+i;;<l+i 

 2< — ■ — '- , a etant entier negatif, et de quelques cas dans lesquels celte somme 



jq + l yj| + i 6*1 + 1 

 est exprimable par une combinasion de factorielles, la notation a'l + i designant le produit des 

 t facteurs a (a+1) (a+2) &c....(a+t- 1);— G.Dickie, M.D., Report on the Marine Zoology 

 of Strangford Lough, County Down, and corresponding part of the Irish Channel; — Charles 

 Atherton, Suggestions for Statistical Inquiry into the extent to which Mercantile Steam Trans- 

 port Economy is affected by the Constructive Type of Shipping, as respects the Proportions of 

 Length, Breadth, and Depth ;— J. S. Bowerbank, Further Report on the Vitality of the Spon- 

 o-iada: — John P. Hodges, M.D., on Flax ;— Major-General Sabine, Report of the Committee 

 on the Magnetic Survey of Great Britain ;— Rev. Baden Powell, Report on Observations of 

 Luminous Meteors, 185G-57;— C. Vignoles, C.E., on the Adaptation of Suspension Bridges to 



James Hargrave, LL.D., on the Algebraic Couple ; and on the Equivalents of Indeterminate 

 Expressions;— Thomas Grubb, Report on the Improvement of Telescope and Equatorial 

 Mountings;— Professor James Buckman, Report on the Experimental Plots in the Botanical 

 Garden of the Royal Agricultural College at Cirencester ;— William Fairbairn on the Resistance 

 of Tubes to Collapse ;— George C. Hyndman, Report of the Proceedings of the Belfast Dredging 

 Committee ;— Peter W. Barlow, on the Mechanical Effect of combining Girders and Suspen- 

 sion Chains, and a Comparison of the Weight of Metal in Ordinary and Suspension Girders, 

 to produce equal deflections with a given load ;— J. Park Harrison, M.A., Evidences of Lunar 

 Influence on Temperature ;— Report on the Animal and Vegetable Products imported into 

 Liverpool from the year 1851 to 1855 (inclusive) ;— Andrew Henderson, Report on the Sta- 

 tistics of Life-boats and Fishing-boats on the Coasts of the United Kingdom. 



Together with the Transactions of the Sections, Rev. H. Lloyd's Address, and Recommen- 

 dations of the Association and its Committees. 



PROCEEDINGS of the TWENTY-EIGHTH MEETING, at Leeds, 

 September 1858, Published at 20s. 



Contents:— R. Mallet, Fourth Report upon the Facts and Theory of Earthquake Phe- 

 nomena ;— Rev. Prof. Powell, Report on Observations of Luminous Meteors, 1857-58 ; — R. H. 

 Meade, on some Points in the Anatomy of the Araneidea, or true Spiders, especially on the 



16* 



