[ 559 ] 
INDEX 
Jto the 
PHILOSOPHICAL TRANSACTIONS, 
Series A, Vol. 197. 
A. 
Air and salt vapours, electrical conductivity of (Wilson), -115. 
Argon and companion gases (Ramsay and Teayees), 47. 
Atmospheric gases (Ramsay and Teayees), 47. 
C. 
Chisholm-Battbn (Capt.). See Lockyee, Chisholm-Batten, and Pedlee. 
D. 
Daewin (G-. H.). Ellipsoidal Harmonic Analysis, 461. 
E. 
Eclipse, solar, of January 22, 1898 (Eyeeshed), 381 ; (Loceyee, &c.), 151. 
Electric Waves, integration of equations of—decay of vibrations in condensing systems (Love), 1. 
Electrical conductivity of air and salt vapours (Wilson), 415, 
Electrical discharge in rarefied gases, action of magnetised electrodes upon (Phillips), 135. 
Ellipsoidal harmonic analysis (Daewin), 461. 
Eyeeshbd (John), Wave-length Determinations and General Results obtained from a Detailed Examination of Spectra 
photographed at the Solar Eclipse of January 22, 1898, 381. 
Evolution, mathematical contributions to the theory of (Peaeson), 285, 443. 
H. 
Harmonics, ellipsoidal (Daewin), 461. 
Heat dissipated by platinum surface at high temperatures (Petavel), 229. 
Helium, neon, crypton, xenon (Ramsay and Teayees), 47. 
Heredity, relation to homotyposis, to variability of species, to evolutionary descent (Pbaeson), 285. 
Homotyposis, principle of, relation to heredity and variability (Peaeson), 285. 
Huy hens’ principle, analytical form of, for a vector disturbance (Love), 1. 
I. 
Ionization in air, energy required to produce (Wilson), 415. 
VOL. CXCVII.—A 299. 4 c 
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14.12.1901 
