■ 287 



on the Marine Testaceous MoUusca 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 Keport 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 varioi:s 

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

 the Vital Powers of the Spongiados; — 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 Researcb.es on the Measure- 

 ment of Water by Weir Boards;— U. 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 Piiilosophical 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 



Dublin, 1857, Published at 15s. 



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 Sonime 



— a a'l + l/?<l + '^'' + ' 

 2< '- r— TTT. a etant entier negatif, et de quelqucs cas dans lesquels celte sonime 



est exprimablepar une combinaison de factoriellcs, la notation a'l + i dcsignant le produit des 

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

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

 Atherton, Suggestions for Statistical Inquiry into the extent to which Mescantile 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- 

 giadffl;— 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, 1 850-57 ;— C. Vignoles, C.E., on the Adaptation of Suspension Bridges to 

 sustain the passage of Railway Trains ;— Professor W. A. Miller, M.D., on Electro-Chemistry ; 

 —John Simpson, R.N., Results of Thermcmetrical Observations made at the ' Plover's ' 

 Wintering-place, Point Barrow, latitude 71° 21' N., long. 15G° 17' W., in 1852-54 ;— Charles 

 James Hargreave, 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. H vndman, 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 1S55 (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 Rceomn.en- 

 dations of the Association and its Committees. 



PROCEEDINGS of the TWENTY-EIGHTH MEETING, at Leeds, 

 September 1858, Published at 205. 



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

 nomena;— Rev. Prof. Powell, Report on Observations of Lnm.inous Meteors, 1857-58; — R. II. 

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

 internal structure of their Spinning Organs ;—V/. Fairbairn, Report of the Committee on the 

 Patent Laws;— S. Eddy, on the Lead Mining Districts of Yorkshire ;— W. Fairbairn, on the 



