INDEX TO VOL. XV. 



Abel(f.a .), researches on gun-cotton : — 

 Memoir I. Manufacture and composi- 

 tion of gun-cotton, 102, 277 ; Memoir 

 II. On the stability of gun-cotton, 417. 



Acids of the lactic series, researches on 

 (No. L), 25. 



Actinometer, description of a new, 328. 



Actinometrical observations among the 

 Alps, 321. 



Airy (G. B.), computation of the lengths 

 of the waves of light cori'esponding to 

 the lines in the dispersion-spectrum 

 measured by Kirclilioft", 405. 



Amyl-compounds derived from petro- 

 leum, 131. 



Analysis, a tabular form of, to aid in 

 tracing the possible influence of past 

 and present upon future states of 

 vreather, 470. 



Analysis of animal and vegetable colour- 

 ing-matters by means of the spectrum- 

 microscope, 433. 



Anniversary Meeting, November 30, 1866, 

 268. 



Annual Meeting for election of Fellows, 



June 7, 1866, 188. 

 Appendicular skeleton of the primates, 



320. 



Appold (J. G.), obituary notice of, i. 



's apparatus for regulating tem- 

 perature and moisture, 144. 



Aster osmilia, on the species of, 460. 



Atmospheric humidity, on the relation of 

 insolation to, 356. 



Auditors, election of, 256. 



Axis of the earth's crust, on a possible 

 geological cause of changes in the posi- 

 tion of, 46. 



Bakerian lecture, February 8, 1866, on 

 the viscosity or internal friction of air 

 and other gases, 14. 



, April 4, 1867, researches on gun- 

 cotton : Second Memoir. On the sta- 

 bility of gun-cotton, 417. 



Barographs at Oxford and Kevr, com- 

 parison between some of the simul- 

 taneous records of, 413. 



Batternbyia, on the genera of, 460. 



Baxendell (J.) and Roscoe (H. E.), note 

 on the relative chemical intensities of 



VOL. XV. ' 



direct sunlight and diffuse daylight at 

 different altitudes of the sun, 20. 



Bench marks, from the Mediterranean to 

 the Dead Sea, 129. 



Benzyldiphenyldiamine, 61. 



Bigsby (J. J.), a brief account of the ' The- 

 saurus Siluricus,' with a few facts and 

 inferences, 372. 



Binocular vision,a new fact relating to,424. 



Birds, on the bones of, at different periods 

 of their growth, 299. 



Bladder and prostate, on the muscular 

 arrangements of the, 244. 



Blood, circulation of, influence of move- 

 ments of respiration on, 391. 



Bombay magnetic observatory, 275. 



Bones of birds at different periods of their 

 growth, 299. 



Boole (G.), obituary notice of, vi. 



Boron, graphitoidal, on the forms of, 12. 



Bovill (Sir W.) elected, 463; admitted, 

 ■ 482. 



Brain, on the intimate structure of, second 

 series, 509. 



Bristol, tide observations at, 289. 



Brodie (Sir B. C, Bart.), the calculus of 

 chemical operations, being a method for 

 the investigation, by mean» of symbols, 

 of the laws of the distribution of weight 

 in chemical change : Part I. On the 

 consti'uction of chemical symbols, 136. 



Brooke (C), remarks on the nature of 

 electric energy, and on the means by 

 wliich it is transmitted, 408. 



Bucknill (Dr. J. C.) admitted, 256. 



Bunt (T. G.), discussion of tide-observa- 

 tions at Bristol, 289. 



Burlington House, notice of change in the 

 occupation of, 270. 



Bursa Fabricii, on the, 94 ; conjectures on 

 the uses of, 101. 



Board of Trade, reorganization of the me- 

 teorological department of, 271. 



Calculus of chemical operations, &e., 136. 

 Canada, heat and vapour in, 358. 

 Candidates for election, list of, March 1, 

 1866, 25. 



, , March 7, 1867, 390. 



selected, list of, May 3, 1866, 128. 



, , May 2, 1867, 455. 



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