278 
INDEX. 
D. 
Donaldson (F.) and Howell (W. H.) (see Howell). 
E. 
Earths, alkaline and other, physiological action of, compared, 223. 
Echidna Ramsay i, 273. 
Eclipse, observations taken daring a total solar, 253 (see Abney). 
F. 
Faraday’s observations of the phenomena of light particles on a vibrating plate considered in reference 
to theory, 1. 
H. 
Hartley (W. X.). Researches on Spectrum Photography in relation to New Methods of Quantitative 
Chemical Analysis.—Part I., 49 (for contents see p. 49). 
Hartley (W. X.) and Adeney (W. E.). Measurements of the Wave-lengths of Lines of High Refrangi- 
bility in the Spectra of Elementary Substances, 63. 
Heart, maximum volume of blood sent out by, and influence of pressure on the work done by, 139 (see 
Howell). 
Hicks (W. M.). On the Steady Motion and Small Vibrations of a Hollow Vortex, 161 (for contents see 
p. 161). 
Howell (W. H.) and Donaldson (F.). 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, 139.—The maximum quantity of blood which can be thrown out from the left ventricle at a 
single beat, 143; influence of variations of arterial pressure upon the work done by the heart, 147; 
influence of venous pressure on the work done by the heart, 151; influence of the rate of beat on the 
same, 156. 
K. 
Kundt’s tubes, explanation of the circulation of air in, 1. 
M. 
Muscle, action of acid and alkali on, 231. 
N. 
Notiosaurus dent at us, 249. 
