vii 



Page 



On the Development of the Great Omentum and Transverse Mesocolon. 

 By C. B. Lockwood 279 



On the Ciliated Groove (Siphonoglyphe) in the Stomodaeum of the Alcyo- 

 narians. By Sydney J. Hickson, B.A., B.Sc., Assistant to the Linacre 

 Professor, Oxford 280 



On the Variations of Latency in certain Skeletal Muscles of some 

 different Animals. By Theodore Cash, M.D., and Gerald F. Yeo, M.D. 281 



Experimental Eesearches on the Electric Discharge with the Chloride of 

 Silver Battery. Part IV. By Warren De La Eue, M.A., D.C.L., 

 F.E.S., and Hugo W. Miiller, Ph.D., F.E.S 292 



June 21, 1883. 



On Line Spectra of Boron and Silicon. By W. N. Hartley, F.B.S.E., 

 &c, Eoyal College of Science, Dublin 301 



On the Steady Motion of a Hollow Vortex. By W. M. Hicks, M.A., 

 Fellow of St. John's College, Cambridge 304 



Influence of Pressure on the Temperature of Volatilization of Solids. By 

 William Eamsay, Ph.D., and Sydney Young, B.Sc 308 



Note on the Establishment and First Eesults of Simultaneous Thermo- 

 metric and Hygrometric Observations at Heights of 4 and 170 feet, and 

 of Siemens' Electrical Thermometer at 260 feet above the ground. By 

 G. J. Symons, F.E.S 310 



On Curves circumscribing Eotating Polygons with reference to the Shape 

 of Drilled Holes. By A. Mallock 319 



Contributions to our Knowledge of the Connexion between Chemical 

 Constitution, Physiological Action, and Antagonism. By T. Lauder 

 Brunton, M.D., F.E.S., and J. Theodore Cash, M.D 324 



The Influence of Water in the Atmosphere on the Solar Spectrum and 

 Solar Temperature. By Captain Abney, E.E., F.E.S., and Colonel 

 Festing, E.E 328 



Supplement to former Paper entitled — " Experimental Inquiry into the 

 Composition of some of the Animals Fed and Slaughtered as Human 

 Food," — Composition of the Ash of the Entire Animals, and of certain 

 Separated Parts. By Sir John Bennet Lawes, Bart., LL.D., F.E.S. , 

 F.C.S., and Joseph Henry Gilbert, Ph.D., LL.D., F.E.S., V.P.C.S 342 



On the Solubility of Salts in Water at High Temperatures. By William 

 A. Tilden, D.Sc. Lond., F.E.S., Professor of Chemistry in the Mason 

 Science College, Birmingham, and W. A. Shenstone, F.I.C., F.C.S., 

 Lecturer on Chemistry in Clifton College, Bristol 345 



On the Determination of the Number of Electrostatic Units in the 

 Electromagnetic Unit of Electricity. By J. J. Thomson, M.A., Fellow 

 and Assistant Lecturer of Trinity College, Cambridge 346 



On the Molecular Weights of the Substituted Ammonias. No. I. Tri- 

 ethylamine. By James Dewar, M.A., F.E.S., Jacksonian Professor, 

 Cambridge, and Alexander Scott, M.A., D.Sc 347 



