...twelve are engaged in the formation of the sixcarbon ring and six in retaining the six hydrogen atoms, in the manner ordinarily supposed ; while the remaining...in fact, make use of the following symbol : — HH 0 C AA HC— ^CH V \/ CC HH The only difference between this symbol and those employed hitherto arises...

...twelve are engaged in the formation of the sixcarbon ring and six in retaining the six hydrogen atoms, in the manner ordinarily supposed ; while the remaining...fact, make use of the following symbol : — HH CC AA HC— - — CH V \/ CC HH The only difference between this symbol and those employed hitherto arises...

...unused valencies in benzene in another way (XI). He suggested that ' the remaining six [valencies] react upon each other — acting towards a centre...said to be uniformly and symmetrically distributed'. Baeyer' put forward a similar interpretation(XII),andBamberger "extended the hypothesis to the aromatic...