INDEX. 
1419 
Sanderson (J. B.). On the Electromotive Properties of the Leaf of Dioneea in the Excited and Unexcited 
States, 1.—Examination of the recent researches of Professor Mtjnk and Dr. Kunkel on plant elec¬ 
tricity, 2; description of the methods and instruments employed, 10; electromotive properties of the 
uninjured leaf, 18; the electrical effects of excitation, 25; excitability, 40; relation between the exci¬ 
tatory process and the mechanical effect, 48; summary of experimental results, 51; conclusion, 53. 
Schreibersite in a meteorite, 892. 
Scorpions, remains of, found in Nova Scotia, 649. 
Seismic experiments, 863. 
Silver, iodide of, &c., effects of heat on, 1125 (see Rod well) ; specific heat and heat of transformation of, 
1169 (see Bellatt). 
Sound, excited by radiant heat, 291 (see Tyndall). 
Sphere , internal stress in a strained elastic, 188 (see Darwin). 
Sturgeons, development of the skull in, 139 (see Parker). 
T. 
Teleostei, 927 (see Sanders). 
Theta-f 'unctions, particularly those of two variables, 783. 
Thomson (J. J.). On the Vibrations of a Vortex Ring, and the Action upon each other of Two Vortices 
in a Perfect Fluid, 493. 
Thymus, minute anatomy of, 1063 (see Watney). 
Troilite in a meteorite, 890, 895. 
Tyndall (J.). Action of Free Molecules on Radiant Heat, and its Conversion thereby into Sound, 291 
(for contents see p. 291). 
V. 
Vagus nerve, nature of the action of, 1005 (see Gaskell). 
Velocity of light, 231 (see Young). 
Vibrations, normal and transversal, in earth and rode, 863; velocity of, 878. 
Vortices in a perfect fluid, 493. 
W. 
Waller (A.) and de Watteville (A.). On the Influence of the Galvanic Current on the Excitability of 
the Motor Nerves of Man, 961.—Introduction, 961; methods and rationale, 962 ; polar alterations of 
excitability tested by induction currents, 966; polar alterations of excitability during the passage of 
a galvanic current tested by makes and breaks of a galvanic current, 974; polar alterations of excita¬ 
bility tested by mechanical excitation, 980; polar alterations of excitability subsequent to the passage 
of the galvanic current, 980; description of tracings, 986. 
Watney (H.). The Minute Anatomy of the Thymus, 1063 (for the contents see p. 1063). 
Wealden fossils, 1035. 
Wells, examination of his theory of dew, 346. 
Y. 
Young (J.) and Forbes (G.). Experimental Determination of the Velocity of White and of Coloured 
Light, 231 (for contents see p. 231). 
