INDEX TO VOL. XLIX. 



ABNEY (W. de W) on the examina- 

 tion for colour of cases of tobacco 

 scotoma, and of abnormal colour 

 blindness, 491. 



on the limit of visibility of the 



different rays of the spectrum. Pre- 

 liminary note, 509. 



the numerical registration of colour. 



Preliminary note, 227. 



Adiabatic relations of ethyl oxide, an 

 attempt to determine the. Part I. 

 On- ecus ether (Ramsay and Perman), 

 447. 



Albumin and other proteids, a new test 

 for (Mac William), 368. 



Alcock (A.) and J. Wood-Mason, on 

 the uterine villiform papillae of 

 Pteroplataa micrvra, and their rela- 

 tion to the embryo, being natural 

 history notes from H.M. Indian 

 Marine Survey steamer " Investiga- 

 tor," No. XXII, 359. 



Alizarin-blue and coerulin as sensitisers 

 for rays of low refrangibility, on the 

 bisulphite compounds of (Biggs), 345. 



Alloys, note on a graphical representa- 

 tion of the results of Dr. Alder 

 Wright's experiments on ternary 

 (Stokes), 174. 



on certain ternary. Part III 



(Wright and Thompson), 156. 



Part IV (Wright, Thomp- 

 son, and Leon), 174. 



Amoeboid protoplasm, on the structure 

 of, with a comparison between the 

 nature of the contractile process in 

 tuuceboid cells and in muscular tissue, 

 and a suggestion regarding the me- 

 chanism of ciliary action (Schafer), 

 193. 



Anaesthetic action of pure nitrogen, on 

 the physiology of asphyxia, and on 

 the (Johnson), 144. 



Anderson (William) elected, 491. 



Andrews (T.) the passive state of iron 



and steel. Part II, 120. 

 Part III, 481. 



Annelid, preliminary notice of a new 

 form of excretory organs in an oligo- 

 chajtous (Beddard), 308. 



Asphyxia, on the physiology of, and on 

 the anaesthetic action of pure nitro- 

 gen (Johnson), 144. 



Ayrton (W. E.) and W. E. Sumpner, 

 the measurement of the power given 

 by any electric current to any circuit, 

 424. 



Bacillus of tubercle, on certain condi- 

 tions that modify the virulence of the 

 (Ransome), 66. 



Bacteriology of sewage, contributions 

 to the chemical (Lunt and Roscoe), 

 455. 



Bakerian lecture (Darwin), 130. 



Basset (A. B.) on the reflection and 

 refraction of light at the surface of a 

 magnetised medium, 76. 



Beddard (F. E.) preliminary notice of a 

 new form of excretory organs in an 

 oligochretous annelid, 308. 



Bismuth, further contributions to the 

 metallurgy of (Matthey), 78. 



zinc, and tin, alloys of, and of 



bismuth, zinc, and silver (Wright 

 and Thompson), 156. 



Bisulphite compounds of alizarin-blue 

 and coeruUn as sensitisers for ruys of 

 low refrangibility, on the (Higgs), 

 345. 



Blood pressure, the action of the paral'- 

 finir nitrites on (Cash and Dunstan), 

 314. 



Boiling point of sulphur, on a determin- 

 ation of the, and on a method of stand- 

 ardising platinum resistance thermo- 

 meters by reference to it (Callendar 

 and Griffiths), 56. 



Bower (Frederick Orpen) elected, 

 491. 



Brennand (W.) photometric observa- 

 tions of the sun and sky, 4, 255. 



Bridge method in its application to 

 periodic electric currents, on the sen- 

 sitiveness of the (Rnyleigii). -Ji>:i. 



Brunton (T. L.) and J. T. Cash, contri- 

 butions to the study of the connexion 

 between chemical constitution and 

 physiological action. Part II, 311. 



