114 Mr. A. S. Couper on a New Chemical Theory. 



The phaenoraena which necessitate this view of the constitution 

 of these bodies have a like consequence in regard to the other 

 alcohols, glycols, acids, and sethers of this series. 

 p..-0-OH 



U...JJ2 



Propyle alcohol is ^j rra , where it will be seen that the 



atom of carbon situated between the two others, on account of 

 being chemically united to these, is reduced to the combining 

 power of two for hydrogen, oxygen, &c. One combining power 

 is given up to the carbon upon the ooe side, and a second to the 

 carbon upon the other. 



It will be observed also, that the primary combinates ought in 

 rigour to be themselves enumerated in an inverse order. The 

 type nCM'* becomes then in reality the type CM'*. This enu- 

 meration, however, does not appear to possess any great practical 

 utility, and it is perhaps preferable simply to denote it in an in- 

 definite manner by adding " n " to the true type CM^. 



•O- OH 

 •H2 



C...XT2 



C-H^ 



In like manner the butyle alcohol is to be viewed as . > 



6-H2 



6.H3 



and so on throughout all the series of these alcohols. The con- 



U..JJ2 H2-^ 



stitution of the aethers will be evident : V"' represents 



6-H2 



b-w 



the mixed butvlic-ethvlic sether. 



,0..0H 

 Formic acid is represented by the form C-0^ ; acetic acid 



(....o-oH c:::^, OH 



in like manner, : "'O' . Propionic acid is /(,..xj2 mi 



(^•■•■tl : 



C-H« 



constitution of glycol may be represented as follows : — 

 P- OH 



^••0 OH 



