CONTENTS {continued). 



June 14, 1883. 



PAGE 



T; Eesearches on the Foraininifera. Supplemental Memoir. On an 

 Abyssal Type of the Genus Orbitolites ; a Study in the Theory of 

 Descent. By W. B. Carpenter, C.B., M.D., F.E.S. . . .276 



II. On the Development of the Great Omentum and Transverse Mesocolon. 



By C. B. Lock wood 279 



III. On the Ciliated Groove (Siphonoglyphe) in the Stomodseum of the 

 Alcyonarians. By Sydney J. Hickson. B.A., B.Sc, Assistant to 

 the Linacre Professor, Oxford . 280 



IV. 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 



V. Experimental Researches on the Electric Discharge with the Chloride 

 of Silver Battery. Part IV. By Warren De La Bue, MA., 

 D.C.L., F.R.S., and Hugo W. Mulder, Ph.D., F.B.S. . . .292 



June 21, 1883. 



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



&c, Eoyal College of Science, Dublin . 301 



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



Fellow of St. John's College, Cambridge 304 



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



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



IV. Note on the Establishment and First Besults 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 a. J. Symons, F.R.S 310 



V. On Curves circumscribing Rotating Polygons with reference to the 



Shape of Drilled Holes. By A. Mallock 319 



VI. Contributions to our Knowledge of the Connexion between Chemical 

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

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



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

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

 Festing, R.E 328 



rill. 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 : 



