506 Prof. T. Carnelley on the Periodic Laic. 



Table II. {continued). — Illustrating Relations 1 and 2. 







Methides. 



Ethides. 



Normal Propides. 



M.P. 



B.P. 



M.P. 



B.P. 



M.P. 



B.P. 





c»... { 



Solidifies 

 253 



\ 282 













(OH)" 



Liquid. 



256 



Liquid. 



370 









(CH 2 )« 



Liquid. 



245 



Liquid. 



311 



Liquid. 



371 





(CH,)« 





Gas. 



Liquid. 



245 



Liquid. 



274 



C B 



(C 2 H)«i 



Liquid. 



309 













(C 2 H 2 )« 



Liquid. 



325 













(C 2 H 3 )"i 



Liquid. 



293 













(C 2 H 4 )» 



Liquid, 



265 



Liquid. 



34*i 



Liquid. 



398 



CO 



(Cftf 



Liquid. 



245 



Liquid. 



274 



Liquid. 



311 



(0,H)« 















53 



(C 3 H 2 )» 



Liquid. 



314 











h 



g 



(0 3 H 3 )m 



Liquid. 



343 











O 



(0 3 H 4 )iv 



Liquid. 



360 











O 



(0 3 H 6 )"i 



Liquid. 



330 











H 



(C 3 H 6 )U 



Liquid. 



299 



Liquid. 



366 



222 



422 



< 



(C 3 H,)' 



Liquid. 



265 



Liquid. 



307 



Liquid. 



340 



(C 4 H 3 )' 



Liquid. 



323 













(0 4 H 4 )" 



Liquid. 



355 













(0 4 H 5 )i« 



Liquid. 



358 













(C,H„)w 



369 



380 













(C 4 H 7 )» 



Liquid. 



364 













(C 4 H 8 )" 



Liquid. 



333 



Liquid. 



398 



24i 



446 





(C 4 H 9 )i 



Liquid. 



299 



Liquid. 



333 



Liquid. 



366 



(0 5 H 6 )i 

















(0 5 H r> )ii 



Liquid. 



360 













(C 5 H 7 )«> 



Liquid. 



387 













(0 6 H 8 )'v 



Liquid. 



404 













(C 5 H 9 )«> 



Liquid. 



381 













(0 6 H 10 )» 



Liquid. 



365 



222 



422 



247 



468 



1 



(CsH,,) 1 



Liquid. 



333 



Liquid. 



365 



Liquid. 



398 



N.B. — In the above table the mean value is given when there are several 

 isomers having the same empirical composition. Sometimes, however, 

 in the case of the melting-points, there are several pairs or triplets of ioO- 

 meric substances of which the melting-point of one onty is known, the 

 others being liquid ; a mean number is therefore impossible : in this case 

 the known melting-point is given. 



1 This is the mean of 448°-473°, which are the temperatures given 

 in Watts's Dictionary (i. p. 768) as those between which protochloride 

 of carbon melts and boils. Chlorine does not act upon this compound 

 even in sunshine. It is most probably a polymer (C 2 C1 2 ) W . Berthelot in 

 fact regards it as C 10 C1 10 . Its vapour-density, however, does not appear 

 to have been determined. 



2 This is the boiling-point of chlornicene, as given by St. Evre (Jahres- 

 bericht, i. p. 530). This substance, if a definite compound, is probably a 

 polymer (C a H 5 Cl) n . 



