INDEX TO PART I. 
OF THE 
PHILOSOPHICAL TRANSACTIONS (A) 
FOR THE YEAR 1895. 
A. 
Argon, a new constituent of the atmosphere, 187 (see RAYLEIGH and Ramsay). 
Argon, note on a comparison of the vapour-pressures of, with those of other substances, 257 (see 
Ramsay and Young). 
Argon, on the spectra of, 243 (see CROOKES). 
Argon, the liquefaction and solidification of, 253 (see OLszEwsk!). 
B. 
Boys (C. V.). On the Newtonian Constant of Gravitation, 1. 
C. 
Carstick (J. W.). On the Ratio of the Specific Heats of Some Compound Gases, 567. 
Congruencies, on the singular solutions of simultaneous ordinary differential equations and the theory 
of, 523 (see Dixon). 
Copper, on a method of determining the thermal conductivity of metals, with applications to, 165 (see 
Gray). 
Crookes (W.). On the Spectra of Argon, 243. 
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