1V Contents. 
HADFIELD, R. A. (See Barretr, Brown, and Haprietp.) PAGE 
JOLY, J. 
On the Conservation of Mass (Plate V.), . ; . 6 3 : : : 5S 
[Published October, 1903. | 
McCLELLAND, J. A. 
Tonization in Atmospheric Air, i ‘ : 6 : : : : : 5 (SY 
[Published November, 1908.] 
On the Emanation given off by Radium, . : : : : . : . - 99 
[Published February, 1904.| 
The Penetrating Radium Rays, . : : : ‘ : Rite : : » 
[Published July, 1904. | 
On Secondary Radiation, . : : ; : : 4 : eee i » 169 
[Published March, 1905.| 
MOSS, RICHARD J. 
On the State in which Helium Exists in Pitchblende, : : : ‘ : 5 ISS 
[Published November, 1904. | 
POLLOK, JAMES HOLMS. 
On the Extraction of Glucinmum from Beryl, . ‘ : : : : . > ats) 
[Published September, 1904. | 
THE TOTAL SOLAR ECLIPSE OF 1900. 
Report of the Joint Committee appointed by the Councils of the Royal Dublin Society 
and Royal Irish Academy (Plates VI. to VIII.), . ° ° ; . : s OS 
WILSON, W. H. 
On the Temperature of certain Stars, : ‘ ; : ; 5 : 6 . 183 
[Published March, 1905. 
InpEx to VoLUME, . ; ; 5 : : : ; : 3 : : 3 oo oil 
