INDEX. 
949 
F. 
Faraday (Michael, Esq.). Experimental Researches in Electricity, Thirtieth Series, 159. — 
Constancy of magnecrystallic force in different media, 159; action of heat on magnecrystals, 
168; effect of heat upon the absolute magnetic force of bodies, 176. 
Figure of the earth, 618. 
Foraminifera, researches on the, 181, 547 (see Carpenter). 
G. 
Gardenia lucida, gum of, gardenine, 155; note, 157. 
Gosse (Philip Henry, Esq.). On the Structure, Functions, and Homologies of the Manducatory 
Organs in the Class Rotifera, 419. 
H. 
Heat, effect of, on magnecrystals, &c., 168 (see Faraday). 
Hofmann (Dr. A. W.) and Buckton (George B., Esq.) (see Buckton). 
J. 
James (Lieut.-Colonel). On the Deflection of the Plumb-line at Arthur’s Seat, and the Mean 
Specific Gravity of the Earth, 591. 
On the Figure, Dimensions, and Mean Specific Gravity of the Earth, as 
derived from the Ordnance Trigonometrical Survey of Great Britain and Ireland, 607. 
Joule (J. P., Esq.). Introductory Research on the Induction of Magnetism by Electrical Cur- 
rents, 287. 
K. 
Kilogramme des Archives, comparison of, with English Standard Pound, 874. 
Kirkman (Rev. Thomas P.). On the Enumeration of x-edva having Triedral Summits, and an 
(a;— l)-gonal Base, 399. 
On the Representation of Polyedra, 413. 
L. 
Fight, action of crystals on, 283. 
Liver, on the structure of the, 384. 
Luminiferous force, compared with elasticity of solids, 282. 
Lunar-diurnal magnetic variations at Toronto, 499. 
M. 
Magnecrystallic force, 159 (see Faraday). 
Magnetic disturbances, on periodical laws discoverable in the mean effects of, 357 (see Sabine). 
Magnetic variation, lunar-diui’nal, 499. 
Magnetism, induction of, by electrical currents, 287. 
Magnetization, effects of, on the thermo-electric qualities of metals, &c., 709 (see Thomson). 
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