INDEX. 411 



authors, 324 ; on the different situations of the ovum in the Graafian vesicle at certain periods 

 ante coitum, not hitherto observed ; and on certain structures by means of which the ovum is 

 made to occupy those several situations, 325, 



F. 



Faraday (Michael, D.C.L.). Experimental researches in electricity. Eleventh series. On In- 

 duction, 1. Supplementary note, 79. 



. Twelfth series. On In- 

 duction (continued). Conduction or conductive discharge. Electrolytic discharge. Dis- 

 ruptive discharge, 83. 



■ . Thirteenth series. On 



Induction (continued). Disruptive discharge (continued). Peculiarities of positive and nega- 

 tive discharge either as spark or brush. Glow discharge. Dark discharge. Convection, or 

 carrying discharge. Relation of a vacuum to electrical phenomena. Nature of electrical 

 current, 125. 



. Fourteenth series. Na- 

 ture of the electric force or forces. Relation of the electric and magnetic forces. Note on 

 electrical excitation, 26b. 



Fisher (Rev. George). Magnetical observations of Captain Sir Everard Home, Bart. R.N., 

 reduced by, 343. 



G. 



Gases, inductive capacity of, 35. 



Germinal vesicle, on the, and its contents as the most primitive portion of the ovum, 308. 



Glow (electric), 134; in gases, 136. 



Graafian vesicle, 311 ; of Mammals, how related to the calyx of Birds, Amphibia, and Fishes, 

 314 ; isolated spots in the, 319 ; synopsis showing the order of formation and the relative 

 position of the several parts of the unimpregnated ovum and the Graafian vesicle of Mam- 

 malia, 304. 



H. 



Home (Captain Sir Everard, Bart. R.N.), magnetical observations made by, in the West Indies, 

 the north coast of Brazil, and North America, in the years 1834, 1835, 1836, and 1837, 343. 



I. 



Induction, on, 1, 83, 125. 



an action of contiguous particles, 1 ; in curved lines, 16 ; specific, or specific inductive 



capacity, 25. 

 electrolytic, 272. 



Inductive capacity, specific, 25; of shell-lac and air, 26; of glass, 31 ; of sulphur, 32; of sper- 

 maceti, 33 ; of oil of turpentine, 33 ; of naphtha, 34 ; of air, 34 ; of gases, 35. 



action, general nature of, 266. 



apparatus, 9. 



polarity, direction of, in crystals, 269. 



Inductometer, differential, 80. 

 Insulation (electric), 95. 

 Insulators and conductors, analogy of, 86. 



Ivory (James, K.H.). Of such ellipsoids consisting of homogeneous matter as are capable of 



3 g2 



