PROCEEDINGS OF 

 THE ROYAL SOCIETY. 



vol. xxxv.. No. 226. 

 ^z- * 



CONTENTS. Z~ 



May 24, 1883. 



PAGE 



I. On the Function of the Sound-post and on the Proportional Thickness 

 of the Strings of the Violin. By William Htjggins, D.C.L., LL.D. ; 

 F.R.S . • . . .. . .241 



ID Note on the Atomic Weight of Glucinura or Beryllium. By J. 



Emerson Reynolds, M.D., F.R.S. 248 



III. The Effects of Temperature on the Electromotive Force and Resistance 



of Batteries. II. By William Henry Preece, F.R.S. . . 250 



IV. Examination of the Meteorite which fell on the 16th February, 1883. 

 at Alfianello, in the District of Verolannova, in the Province of 

 Brescia, Italy. By Walter Flight. D.Sc, F.G-.S. . . . 258 



V. Circular concerning Astronomical Photography. From E. C. Pickering, 



Director of Harvard College Observatory, Cambridge, Mass., U.S.A. 260 



May 31, 1883. 



The Bake man Lecture — On Radiant Matter Spectroscopy. A New Method 



of Spectrum Analysis. By William Crookes, F.R.S 262 



Experiments upon the Heart 'of the Dog with reference to the Maximum 

 Volume of Blood sent out by the Left Ventricle in a single Beat, and the 

 Influence of Variations in Venous Pressure, Arterial Pressure, and Pulse 

 Rate upon the Work done by the Heart. By William H. Howell, 

 A.B.j Fellow of the Johns Hopkins University, and F. Donaldson, Jr. 



r- r l.B. . . . . . ...... . . 271 



June 7, 1883. 



Election of Fellows: e 275 



For continuation of Contents see 3rd and Mh pages of Wrapper. 



Price Six Shillings. 



