﻿484 



INDEX. 



Spectrum observations of comets, on 

 some, 456. 



Stewart (B.) on certain experiments 

 on aneroid barometers, 65 ; on the 

 heating of a disk by rapid rotation 

 in vacuo, 97. 



Sun, spectroscopic observations of the, 

 144. 



Swan (Prof. W.) on a metallic con- 

 nector to replace the vulcanite tube 

 used with Bianchi's air-pump, 442. 



Sylvester (J.*J.) on an equation in 

 differences of the second order, 225. 

 on a new continued fraction appli- 

 cable to the quadrature of the circle, 

 373 ; on two remarkable resultants 

 arising out of the theory of rectifi- 

 able compound logarithmic waves, 

 375. 



Tait (Prof. P. G.) on the heating of 

 a disk by rapid rotation in vacuo, 97. 



Tidal action, on the secular effects of, 

 216. 



Tomlinson (C.) on some phenomena 

 connected with the boiling of li- 

 quids, 161. 



Turgite, analysis of, 268. 



Tyndall (J.) on cometary theory, 241; 

 on the blue colour of the sky, 

 the polarization of skylight, and on 

 the polarization of light by cloudy 

 matter, 384. 



Vapours, on the dispersive power of, 

 75. 



Vaughan (D.) on the secular effects 

 of tidal action, 216. 



Vicaire (E.) on the temperature of 

 flames and dissociation, 156. 



Vision, binocular, on some pheno- 

 mena of, 131. 



Voice, on the falsetto or head-sounds 

 of the human, 289. 



Wanklyn (Prof. J.) on a new method 

 of estimating minute traces of me- 

 tals, 80 ; on ethylate of sodium and 

 ethylate of potassium, 117 ; on the 

 compounds of ethylene-sodium and 

 of its homologues, 175 ; on some 

 reactions of hydrated oxide of ethy- 

 lene-sodium, 358. 



Water, on the blue colour of, 345. 



White-lead corrosions, on the cause 

 of a pink colour in, 344. 



Wiedemann (Prof.) on the magnetism 

 of chemical compounds, 314. 



Wild (H.) on the absorption of light 

 by the air, 293. 



Wilde (H.) on a property of the mag- 

 neto-electric current, 54. 



Wright (R. J.) on a method of mea- 

 suring the intensity of total day- 

 light, 74. 



Wiillner (A.) on the formation of an 

 artificial spectrum with one Fraun- 

 hofer's line, 235 ; on the spectra of 

 certain gases in Geissler's tubes, 

 405. 



END OF THE THIRTY-SEVENTH VOLUME. 



PRINTED BY TAYLOR AND PRANCIS, 

 RED LION COURT, FLEET STREET. 



