558 



INDEX. 



of benzole into benzoic acid, 310; 

 on the synthesis of the fatty acids, 

 537. 



Harris (Sir W. S.) on the laws and 

 operation of electrical force, 65. 



Harrison (J. P.) on lunar influence 

 over temperature, 247. 



Heat, on the alteration of electro- 

 motive force by, 408. 



Hemiopsy, observations on, 503. 



Herrmann (M.) on the action of nascent 

 hydrogen on benzoic acid, 528. 



Herschel (Sir J. F. W.) on certain 

 statements respecting Sir H. Davy, 

 77, 246. 



Hoppe-Seyler (M.) on a spectroscopic 

 method of distinguishing solutions 

 of permanganates from the sesqui- 

 salts of manganese, 78. 



Huggins ( W. ) on the spectra of some 

 nebulae, 151 ; on the spectrum of 

 the great nebula in the sword- 

 handle of Orion, 319. 



Hunter (J.) on the absorption of gases 

 by charcoal, 116. 



Hydrochloric acid gas, on the pro- 

 perties, of liquefied, 541. 



Indium, on the preparation of, 328. 



Induction-spark, on a peculiar phe- 

 nomenon of the, 488. 



Iron, on an anomalous magnetizing 

 of, 113. 



Jenkin (F.) on the retardation of elec- 

 trical signals on land lines, 409 ; 

 on the elementary relations be- 

 tween electrical measurements, 436, 

 507 ; on the new unit of electrical 

 resistance, 477. 



Jones (H. B.) on the passage of li- 

 thium into the textures of the body, 

 394. 



Kronig (A.) on a simple mode of 

 determining the position of an optic 

 image, 327. 



Lake-basins, on the glacial theory of, 

 206, 285, 526. 



Lamy (M.) on the phosphates of 

 thallium, 379. 



Langite, description of the new mi- 

 neral, 473. 



Ley den jar, on the heating of the glass 

 plate of the, by the discharge, 244. 



Liebermann (M.) on the action of 

 iodine on silver-allylene, 30/. 



Light, on the undulatory theory of, 

 329 ; on the absorption of, at dif- 



ferent temperatures, 471 ; on a new 

 determination of the lengths of 

 waves of, 489. 



Lindig(F.)on the alteration of electro- 

 motive force by heat, 408. 



Linuemann (M.)on benzhydrole, 531 ; 

 on the action of hydrogen on acro- 

 leine, 533. 



Lithium, on the passage of, into the 

 textures of the body, 394. 



Lobatschewsky's imaginary geome- 

 try, note on, 231. 



Loewy (B.) on the nature of solar 

 spots, 237, 390. 



Logan (Sir W. E.) on the Laurentian 

 rocks of Canada, 7o. 



Lorin (M.) on a new mode of reduc- 

 tion, 380. 



Madan (H. G.) on the reversal of the 

 spectra of metallic vapours, 338. 



Magnetic phenomena, on the mea- 

 surement of, 439. 



Magnetism, on the production of, by 

 turning, 407. 



Magnus (Prof.) on thermal radiation, 

 58. 



Manganese, on a spectroscopic me- 

 thod of distinguishing certain com- 

 pounds of, 78. 



Marcus (S.J on a new thermo-element, 

 406. 



Marignac (Prof.) on the silico-tung- 

 states, 377. 



Mars, observations on the planet, 322. 



Martins (C.) on the relative heating, 

 by solar radiation, of the soil and 

 of the air, 10. 



Maskelyne (Prof.) on new Cornish 

 minerals, 473. 



Mathews (W.) on the construction 

 of double-scale barometers, 7^- 



Maxwell (Prof. J. C.) on a dynami- 

 cal theory of the electromagnetic 

 field, 152; on the elementary rela- 

 tions between electrical measure- 

 ments, 436, 507. 



Mercury unit, on the, 361. 



Metals, on the specific resistance of 

 the, 361. 



Meteorites of Orgueil, on the, 487; 

 on the chemical and mineralogical 

 characters of the, 552. 



Michaelson (M.) on propylic and bu- 

 tylic aldehydes, 309. 



Mineralogy of South America, re- 

 searches on the, 1, 129. 





