t.' o N 1' F, N T 3. VII 



COMPOUNDS (Additivo) of s. triuitrobenzeiie. 702. 



cOMPttESsiBlLlTY (The preparation of llie mixtures and llie) at small densities. 541. 



CONCENTRATION (Cluuiges of) in and crystallisation from solutions by centririiii,-!il 



power. 846. 

 CONDUCTIVE POWER (The) of hydrates of nickelsulpliate dissolved in methylalcoliol. 94, 

 CONDUCTIVITY (The electrolytic) of solutions of sodium in mixtures of ethyl- or motiiyl- 



alcohol and water. 104. 

 CONICS (On systems of) belonging to involutions on rational curves. 505. 

 CONTINUITY (The representation of the) of the liquid and gaseous conditions on the 



one hand and the various solid aggregations on the other by the entropy-vobime- 



energy surface of Gibbs. 678. 

 CONTINUOUS MOTION (On a decomposition of a) about a fixed point of S^ into two 



continuous motions about of S.^^. 716. Observation of Dr. E. .Jaunke. 831. 



— (Algebraic deduction of the decomposability of the) about a fixed point of »Sj 

 into those of two /Sg's. 832. 



COURSE (The) of the melting-point-line of alloys. 21. 



— of the decrease (A contribution to the knowledge of the) of the vapour tension 

 for aqueous solutions. 628. 



CRITICAL STATE (The equations of state and the »J>-surface in the immediate neigh- 

 bourhood of the), for binary mixtures with a small proportion of one of the 

 components (part 3). 59. (part 4). 115. 



— (The eqiiilibrium between a solid body and a fluid phase, especially in the 

 neiglibourhood of the). 230. 2"'^ part. 357- 



CRITICAL TEMPERATURES (The coursc of the solubility curve in the region of) of 

 binary mixtures. 171- 2"*^ communication. 484. 



c R o M M E L I N (c A.) and H. Kamerlingh Onnes. On the measurement of very 

 low temperatures. VI. Improvements of the protected thermoelements; a battery 

 of standard-thermoelements and its use for thermoelectric determinations of tem- 

 perature. 642. 



CRYOGENIC laboratory (Methods and apparatus used in the). VI. The methylchloride 

 circulation. 668. 



CRYSTALLISATION (Changes of concentration in and) from solutions by centrifugal 

 power. 846. 



CRYSTALLOGRAPUic and molecular symmetry of position isomeric benzene derivatives. 406» 



CUBIC CURVE (The harmonic curves belonging to a given plane). 197. 



CURVE (The singularities of the focal curve of a ])lane general) touching the line at 

 infinity a times and passing s times througli each of the imaginary circle points 

 at infinity. 621. 



— in S:^ (Pll'CKEh's numbers of a). 501. 



CURVE IN SPACE (The singularities of the focal curve of a). 17. 



CURVES (An equation of reality for real and imaginary plane) with higher singula- 

 rities. 764. 



— (On systems of conies belonging to involutions on rational). 505. 



— (Fundamental involutions on rational) of order five. 508. 



