624 
INDEX. 
M. 
Magnetism in iron-built ships, 343 ; its early changes, 349. 
Matthiessen (Dr. A.) and Holzmann (Dr. M.). On the Effect of Metals and Metalloids on the 
Electric Conducting Power of Pure Copper, 85. 
Matthiessen (Dr. A.). On the Electric Conducting Power of Alloys, 161. — General conclusions, 171 ; 
Appendix, on the electric conducting power of pure gold, 175. 
On the Specific Gravity of Alloys, 177. 
Maxwell (Professor J. C.). On the Theory of Compound Colours, and the Relations of the Colours 
of the Spectrum, 57. — Description of an instrument for making definite mixtures of the colours of 
the spectrum, 65 j results, 70; general conclusions, 77; postscript, relating to the vision of the 
colour-blind, 78. 
Merrifielb (C. W.). On a new Method of Approximation applicable to Elliptic and Ultra-elliptic 
Functions, 223. — Addendum, 226. 
Muller (H.) and De la Rue (W.). On the Resin of Ficus rubiginosa, &c., 43 (see De la Rue). 
Muscle, distribution of nerves to, 611 (see Beale). 
N. 
Nerves, distribution of, to striped muscle, 611 (see Beale). 
Nitrous acid gas, lines produced by the absorption of light by, 157 (see Brewster). 
O . 
Ozone, formation of an oxide of a hydrocarbon by means of, 246 (see M'illiams). 
, volumetric relations of, 113 (see Andrews). 
P. 
Pavy (Dr. F. W.). Researches on Sugar Formation in the Liver, 595. — Conclusions, 608. 
Phos])horus-bases, 409; bases containing phosphorus and nitrogen, and phosphorus and arsenic, 497 
(see Hofmann). 
Polystomella, 535. 
Prestwich (J.). On the Occurrence of Flint-implements, associated with the Remains of Animals of 
Extinct Species in Beds of a late Geological Period, in France at Amiens and Abbeville, and in 
England at Hoxne, 277. 
R. 
Radiating powers, determination of absolute, 379. 
S. 
St. Acheul, flint-implements found at, 277 (see Prestwich). 
Salmon (Rev. G.). On Quaternary Cubics, 229. 
Saturation-gauge, 186. 
Sella (Quintino), determination by, of the forms of various artificial crystals, 416-522. 
