1216 
INDEX. 
Davison (C.). On the Annual and Semi-Annual Seismic Periods, 1107. 
Differential covariants of plane cui'ves, on the, and the operators employed in theii’ development, 1171 
(see Gwtther). 
Dixon (H. B.). The Rate of Explosion in Gases.— Bakerian Lecture, 97. 
Dyson (P. W.). The Potential of an Anchor Ring, 43.—Part II., 1041. 
B. 
Electrical and mechanical units, the value of the mechanical equivalent of heat, deduced from some 
experiments performed with the view of establishing the relation between the, 361 (see Griefiths). 
Electrical resistance of thin liquid films, on the thickness and, 505 (see Reinold and Rucker). 
Ether near the earth, a discussion concerning the motion of the, and concerning the connection between 
ether and gross matter, 727 (see Lodge). 
Ewing (J. A.) and Klaassen (Helen G.). Magnetic Qualities of Iron, 985. 
Explosion in gases, the rate of.— Bakerian Lecture, 97 (see Dixon). 
F. 
Films, on the thickness and electrical resistance of thin liquid, 505 (sec Reinold and Rucker). 
G. 
Gases, the rate of exjdosion in.— Bakerian Lecture, 97 (see Dixon). 
Glacial or so-called post-glacial period, on the evidences of a submergence of Western Europe, and of the 
Mediterranean Coasts at the close of the, and immediately preceding the neolithic or recent period, 
903 (see Prestwich). 
Gray (T.). On the Measurement of the Magnetic Properties of Iron, 531. 
Gi-eeh temples, on the results of an examination of the orientations of a number of, with a view to 
connect these angles with the amplitudes of certain stars at the time the temples were founded, 
805 (see Penrose). 
Griffiths (E. H.). The Value of the Mechanical Equivalent of Heat, deduced from some Experiments 
performed with the view of Establishing the Relation between the Electrical and Mechanical 
Units; together with an Investigation into the Capacity for Heat of Water at different Tempera¬ 
tures, 361. 
Gwyther (R. F.). On the Differential Covariants of Plane Curves, and the Operators employed in their 
Development, 1171. 
H. 
Earmonic analysis of hourly observations of air temperature and pressure at British Observatories.— 
Part I., Temperature, 617 (see Strachey). 
Heat, the value of the mechanical equivalent Of, together with an investigation into the capacity for heat 
of water at different temperatures, 361 (see Griffiths). 
