CONTENTS. XXIII 



SUBSTANCES (Apparatus for the general cryoraagnetic investigation of) of small sus- 

 ceptibility 689. 786. 



— (On the critical density for associating). 1076. 



SUNSHINE (On the relation between the cloudiness of the sky and the duration ot). 507. 

 SUSCEPTIBILITY (On the) in the excited ferromagnetic state. 468. 



— (The) of solid argon in two forms. 894. 



^- (The) of liquid mixtures of oxygen and nitrogen and the influence of the mutual 

 distance of the molecules upon paramagnetism. 901. 

 SYSTEM hexane-water (On the). 404. 



— phosphorus (On the vapour pressure lines of the). I. 1174. 



— of curves (On a) occurring in Einstein's theory of gravitation. 40. 



SYSTEMS (The) phosphorus and eyane. 27. 



— (Pseudoternary) of acid anhydrides and water. I. Phthalic anhydride. 712. 



T A M M E s (tin e). The explanation of an apparent exception to Mendel's law of 



segregation. 1021. 

 temperature (Magnetic resolution of spectrum lines and). 158. 



— (The eft'ect of) and transverse magnetisation on the continuous-current resistance 

 of crystallized antimony. 1110. 



TEMPERATUUE-measurements (On) of anisotropous bodies of radiation-pyrometers. 799. 



TEiiNARY SYSTEMS (Equilibria in). VIII. 99. IX. 385. X. 540. XL 597. XII. 739. 

 XIII. 841. XIV. 1136. 



TERPENTiNE-injections (The effect of subcutaneous) on the chemotaxis of renaole places. 609. 



TER WEN (j. AV.), A. Smits and S. C Bokhorst. On the vapour pressiire lines of 

 the system phosphorus. 1. 1174. 



tethys (At what time the Indian Archipelago is separated from the). 921. 



TETRANITRO PFIENYLMETHÏL and ethylnitrauiine (2.3.4.6). 869. 



theory of Br-^vais (Tiie) (on errors in space) for polydimensional space, with applica- 

 tions to correlation. 1124. 



— of energy quanta (A mechanical theorem of Boi.tzmann and its relation to 

 the). 591. 



THEORY of allotropy (On the passivity of metals in the light of the). 191. 



— (The application of the) to electromotive equilibria. 699. 



— of free electrons (On the) in metals. 236. 

 thermopile (A rapid). 568. 



THEUNissEN (f.). The arrangement of the motor roots and nuclei in the brain 



of Acijienser ruthenus and Lepidosteus osseus. 1032. 

 T H ONUS (j. c.) Concerning combinations of aniline with hydrochloric acid. 553. 

 TOiT (d. f. d u). Concerning combinations of urea with acids. 555. 

 TOLUOLS (The nitration of) and its derivatives chlorated in the side-chain. 19?. 

 TR\NSFORMATiON (The) of cyclo-hexeuc into benzene and cyclo-hexaue. 499, 

 TRANSPIRATION (On the regulation of the) of Viscum album and Eliipsalis Cassytha. 1008. 

 TYNDALL-phenomenon (On the) in gelatin-solutions. 331. 



