922 
INDEX. 
Spectrum-analysis in connexion with the sun, 561 (see Lockyer). 
Spherical shell, induction of electric current in, 345. 
Spottiswoode (W.). On tlie Forty-eight Coordinates of a Cubic Curve in Space, 375. 
Stokes (G. G.). Note on the Reduction of Mr. Crookes’s Experiments on the Decrement of the Arc of 
Vibration of a Mica Plate oscillating within a Bulb containing more or less rarefied gas, 435. 
Sun, spectrum of tbe, 561 (see Lockyer). 
T, 
Ticlal friction of a planet attended by several satellites, 491. 
Thyroid gland, 577 (see Baber). 
Toroidal functions, 609 (see Hicks). 
V. 
Viscosity of gases, 387, 435. 
r 
W. 
Water, thermal conductivity of, 537. 
Wave-lengths, of metallic and solar lines, tables of, 573. 
Wealden formation, description of a large Dinosaur from the, 653. 
Williamson (W. C.). On the Organization of the Fossil Plants of the Coal-Measures.—Part XI., 283.— 
General conclusions respecting the Carboniferous Lycopods, 295; Calamostachys Binneyana, 298; 
index to the plates, 302. 
Z. 
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