418 
INDEX. 
F. 
Farr (W.). English Reproduction Table, 281. 
G. 
Gilbert (J. H.) and Lawes (J. B.) (see Lawes). 
Gunpowder, products of explosion of fired, 203 (see Noble), 
H. 
Heat , conduction of, in ellipsoids of revolution, 117. 
Hyposulphite of potassium, question of the formation of, in explosion of gunpowder, 209. 277. 
L. 
Lawes (J. B.) and Gilbert (J. H.). Agricultural, Botanical, and Chemical results of Experiments on 
the Mixed Herbage of Permanent Meadow, conducted for more than Twenty Years in succession on 
the Same Land.—Part I. Agricultural results, 289 (for the contents see p. 416). 
Lewis (W. B.). Researches on the Comparative Structure of the Cortex Cerebri, 35.—Brain of the pig, 
35; of the sheep, 47; of the cat, 51; relative area of five-laminated cortex in different animals, 55; 
divergence in types of ganglionic cell, 58; summary, 61. 
M. 
Manures, effects of (see Lawes). 
M‘Leod (H.) and Clarke (G. S.). On the Determination of the Rate of Vibration of Tuning-Forks, 1. 
Medusae, 161 (see Romanes). 
Muller (H. W.) and De La Rue (W.) (see De La Rue). 
N. 
Niven (C.) On the Conduction of Heat in Ellipsoids of Revolution, 117. 
Noble (W.) and Abel (F. A.). Researches on Explosives.— No. II. Fired Gunpowder, 203 (for contents 
see p. 203). 
P. 
Perry (J.) and Ayrton (W. E.) (sec Ayrton). 
Potential of voltaic hattenj, 15 (see Ayrton) ; required for a discharge in gas, 65 (see De La Rue). 
