Chemical Notices : — Lieben and Bauer on some new Ethers, 305 



There are indeed many points of likeness between the two. 



In the first place, the extreme height to which the flames rise 

 above the surface of the sun has already been adduced in favour 

 of this hypothesis. « 



Secondly. The red flames have been shown by Mr. De la Rue 

 to possess great actinic effect, a quality which Dr. Robinson and 

 others have also found in light of the terrestrial aurora. 



Thirdly. Their red or violet colour is also in favour of the 

 hypothesis. 



Fourthly. Their light is unpolarized, which is also the case 

 with that of the aurora. 



And fifthly. Some of the red flames present a curved appear- 

 ance, similar perhaps to the auroral arch. 



It would therefore appear that the comparison is in favour of 

 this view, which has also the claim upon our attention that it 

 may possibly prove of service as a working hypothesis in the 

 science of terrestrial magnetism. 



I am, Gentlemen, 



Kew Observatory, Your obedient Servant, 



20th Sept. 1862. Balfour Stewart. 



XLI. Chemical Notices from Foreign Journals, 

 By E. Atkinson, Ph.D., F.C.S. 



[Continued from p. 192.] 



n TJ3") 



f" F it were possible in methylic ether, p tj3 \- Qi to replace two 



atoms of hydrogen in the methyle by the radical methyle, a 

 compound would be obtained having the composition of ordi- 

 nary ether, £■ tra r» us > 9 = p 2 tjs f ®' Similarly, from ethylic 

 ether might be obtained propylic ether, 



€ 2 H 4 ,GH 3 \ A ^€ 3 HH a 

 € 2 H 4 , G H 3 J w ~ € 3 H 7 J v- 



And it w r ould thus be possible, starting from the homologous 

 series of ethers poor in carbon, to pass to those with a higher 

 proportion of carbon. Lieben and Bauer* have undertaken an 

 investigation in this direction. They caused the zinc compound 

 of the alcohol radical to act on the chlorinated ether, and com- 

 menced their experiments with the monochlorinated ethylic ether, 



£ 2 TT 4 pi >&> which is obtainable in large quantities. This body 

 acts very energetically on zinccthyle, and it is necessary that 



* Liebig's Annalen, July 1862. 



