48 ALCOHOL, SPIRIT OP WOOD, AND ETHERS- 
In the great number of experiments set forth in this essay, 
there is, without doubt, some that merit a more extended ex- 
amination. Such are the reactions of anhydrous acids and 
chlorides upon the ethers of the hydracids, and by conse- 
quence on organic ethers ; the slow action of etherifying 
chlorides and fluorides upon alcohol ; analytic research is ne- 
cessary to obtain fixed ideas on some points, especially on the 
nature of the liquid methylic ether produced by the action of 
the chlorides ; upon the crystalline compound obtained by the 
action of water on the result of the slow decomposition of flu- 
oride of boron by alcohol ; it is finally proper to examine into 
the analogy which exists between the compounds I have de- 
scribed and the ethereal salts of Zeize. It would have been 
more agreeable to me to complete the extent of my researches, 
but business occupations hindering the further pursuit of this 
work at present, I have thought proper, on account of the in- 
terest of the theoretical question, to bring them, although im- 
perfect, to the knowledge of chemists, and call their attention 
to the different points which are left undecided. 
Journ. de Pharm. 
\ 
