INDEX 11. 



247 



menta of resistance of plane figures, 

 23 ; on a new construction for the 

 central nucleus of a plane section, 25. 



•Kennedy (Prof. A. B. W.) on cen- 

 troids, and their application to some 

 mechanical problems, 26 ; *on E,eu- 

 leux's treatment of mechanisms, 226. 



Kerr (Dr. J.) on rotation of the plane of 

 polarization by reflection from a mag- 

 netic pole, 40. 



Kingzett (C. T.) on the limited oxida- 

 tion of terpenes (Part IV.), 64; on 

 the action of alcohol on the brain, 

 154. 



Knowles (W. J.), the classification of 

 arrow-heads, 166 ; additional remarks 

 on the find of prehistoric objects at 

 Portstewart, 166. 



*Knox (Dr.) on Bosjes skulls, 166. 



Labyriutliodont remains from the upper 



Carboniferou.s (gas-coal) of Bohemia, 



Dr. A. Fritsch on, 80. 

 *Ladd (W.), a description of Spottis- 



woode's pocket polarizing apparatus, 



41. 

 *Lamina inimersed obliquely in a fluid 



stream, Lord Rayleigh on the forces 



experienced by a, 31. 

 Lamp, R. Lavender on a new form of, 



229. 

 •Laplanders and people of the north of 



Europe, H. v. H. v. d. Horck on the, 



166. 

 Larmuth (L.) on the poisonous activity 



of vanadium in ortho-, meta-, and pyro- 



vanadic acids, 155. 

 and Prof. Gamgee on the action 



of vanadium upon the intrinsic ner- 

 vous mechanism of the frog's heart, 



151. 



-, and J. Priestley on the 



action of pyrophosphoric acid on the 



circulatiou, 152. 

 Lasaulx (Dr. von) on some new minerals, 



and on doubly-refracting garnets, 92. 

 Latham (B.) on theimportanceof hj'dro- 



geological surveys from a sanitary 



point of view, 226. 

 Laticiferous canals in fruit of Linino- 



chnris Plumieri, Prof A. Dickson on, 



144. 

 Lavender (R.) on a new form of lamp, 



229. 

 Lead, the action of dilute saline solu- 

 tions upon, M. M. P. Muir on, tiG. 

 * desilverizing by the zinc process, 



J. E. Stoddart on, 69. 

 Lebour (CI. A.) on the changes afiecting 



the southern extension of the lowest 

 Carboniferous rocks, 93. 



*Lecture-table, the new, for physical 

 demonstration in the Royal College 

 of Science for Ireland, diagi-ams and 

 description of, by Prof. Barrett, 48. 



Legendre's scale for calculating the first 

 elliptic integral. Prof. F. W. New- 

 man on the use of, 28. 



•Lesmahagow, Dr. R. Slimon on the 

 Upper Silurian rocks of, 96. 



•Letts (A. C.) on two new hydrocar- 

 bons from turpentine, 65. 



Lightning, the protection of buildings 

 from. Prof. J. C. Maxwell on, 4:3. 



Limnocharis Plumieri, Prof. A. Dickson 

 on laticiferous canals in, 145. 



*Liverpool, overcrowding in, R. W. 

 Pitcher on, 208. 



Lodge (O. J.) on a mechanical illustra- 

 tion of electric induction and conduc- 

 tion, 42 ; on a mechanical illustration 

 of thermoelectric phenomena, 43. 



Long (J.) on an apparatus for cleaning 

 filtering-sand, 232. 



•Lungs, Dr. W. Stirling on the nervous 

 apparatus of the, 163. 



•M'Cann (Rev. J.) on the origin of in- 

 stinct, 166 ; *on the organization of 

 original research, 207. 



Macfadzean (J.) on the parallel roads of 

 Glen Roy, 93. 



M'Kendrick (Dr. J. G.), Address by, to 

 the Department of Anatomy and Phy- 

 siology, 126. 



•Mackerel sky, physical explanation of 

 the, by Sir W. Thomson, 54. 



MacLean (H.) on the Gaelic inhabitants 

 of Scotland, 166; on the Anglicizing 

 and Gaelicizing of surnames, 167. 



•M'Nab (Prof.) on Chureocholax polysi- 

 plionia, Reiusch, 144 ; *on the struc- 

 ture of the leaf in ditt'erent species of 

 Abies, 144. 



•Mactear (J.) on soda manufacture, 65. 



•Macvicar (Dr.) on the possible genesis 

 of the chemical elements out of a 

 homogeneous cosmic gas or common 

 vapour of matter, G5. 



•Magnetization of iron, the eflects of 

 stress on the, Sir W. Thomson on, 45. 



•Magneto-electric light, photometric 

 measurements of the, by Capt. Abney, 

 o6. 



♦Major third, a practical method of 

 tuning a, Sir W. Thomson on, 48. 



♦Mansel (R.) on the direct motion of 

 steam-vessels, 227. 



Mansion (Prof P.), elementary demon- 



