PROCEEDINGS OF 



THE ROYAL SOCIETY. 



VOL. XXV. -:3^rTr;>vJNo. 176. 



^ v; 



December 7, 1876. 



\ ' CONTENTS 



PAGE 



T. On a new Form of the " Sprengel" Air-pump and Yacuum-tap. By 

 Chaeies H. Gimingham. (Plate 9.) 396 



II. The Diurnal Variations of the Wind and Barometric Pressure. By 

 Feed. Chambees, Meteorological Reporter for the Bombay Presidency, 

 and Acting Superintendent of the Colaba Observatory, Bombay .... 402 



December 14, 1876. 



I. On the Mechanical Effects and on the Electrical Disturbance consequent on 

 Excitation of the 'L.Qzioi Dioncsa rrbuscij^vla. By J. BT7ED0N-SAia)EES0N, 

 M.D., F.E..S., Professor of Physiology in University College, and F. J. M. 

 Page, B.Sc, F.C.S 411 



II. Note on the Electromotive Properties of Muscle. By J. B uedon-Sandeesox, 



M.D., F.R.S 435 



III. Preliminary Notice of Investigations on the Action of the Yaso-motor Nerves 



of Striated Muscle. By W. H. G-askell, M. A., Trinity College, Cambridge 439 



lY. Note on the Photographic Spectra of Stars. By William Htjggins, 



D.C.L., LL.D., F.R.S . 44S 



\For continmtion of Contents see ^th page of Wrapper. 1 

 Price Three Shillings, 



