INDEX TO VOLUME IX. 
A. H. 
Absorption of $ Radium Rays by Matter | Hartley (Walter Noel). An Investigation of the 
(McCurttanp and Hacxert), 37. Connexion between Band and Line Spectra of 
the same Metallic Klements, 85. 
Alloys of Iron, Densities and Specific Heats of 
some (Brown), 59. 
I. 
B. 
Iron, Densities and Specific Heats of some Alloys 
Band and Line Spectra of the same Metallic 
of (Brown), 59. 
Hlements, An Investigation of the Connexion | 
between (Harriry), 85. 
L. 
Brown (W.). The Densities and Specific Heats 
of some Alloys of Iron, 59. Lavis (H. J. Johnston). The Eruption of 
Vesuvius in April, 1906, 139. 
C. 
Conway (Arthur W.). Electro-Magnetic Mass, | 
51. 
M. 
McClelland (J. A.). On Secondary Radiation 
oa (Part II.), and Atomic Structure, 1. 
Densities and Specific Heats of some Alloys of 
Iron (Brown), 59. —— The Energy of Secondary Radiation, 9. 
E. | McClelland (J. A.) and WHacxerr (F. E.). 
5 d Radiation fr C ds, 27. 
Hlectro-Magnetic Mass (Conway), 51. Seer mre aon: Torn “Compounss 
Hruption of Vesuvius, 1906 (Lavis), 139, Then yAbsorption) of) Radium Rays by 
Matter, 37. 
H. 
Hackett (F. H.). The Secondary Radiation Hx- Re 
cited by y Rays, 201. 
Radium: The Absorption of @ Radium Rays by 
—— See McCuetuanp and Hacxerr. Matter (McCuirxianp and Hackett), 37. 
TRANS, ROY. DUB. SOC., N.S. VOL. IX. 2N 
