50 J. Schiel on Classification by Series. 
mined at present, but there is no hydrocarburet known to con- 
tain more than (2n+2) and less than 2n— (n+2)=n—2 atoms of 
hydrogen to n atoms of carbon 
The alcohols form several generic series: 
Alcoholic series I, 
€nHenze © common alcohols of the type©" get 
oe Hen 
€nH2n+2 O2 glycolic alcohols of the type - Oe 
ut F2n-1 
os - O3 
H3 
€nHot+e O3 glycerine a“ 
whether tetracid alcohols of the general formula ©, H,,4,0, and 
the type g.- an-2 + ©, can exist, is not known, as we know 
nothing certain about the existence of tetrabasic radicals. The 
polyethylenic glycols of the general formulas 
nHenye2 4 
EnHansre Os 
are bibasic alcohols corresponding to the types Banda , 8,. 
a 
Alcoholie series IT, 
€,H2,0 allylic aleohols of the type "4?""! Lo 
€nHonO2 “ glycols “ te Ox 
©.HaO2 “ glyoerine Sn Op 
of this series the only member known as yet is ee alcohol 
€,H_,® corresponding to the general formula ©, 
Alcoholic series III, IV. V. 
€,H2n-20, €nHon-2 02, ete. 
€nHon-49, €yHen-4 Oa, ete. 
. €,Ho,-6 8 the sree.” of phenylic alcohol; 
€,,Hen-3 8 cinnamylic alcohol. 
The homologous series answering the general formula €, H,,_, © is 
€,H,® phenylic — boil. point, 184°. 
€. H, © benzoylic “ 4 ; 
€ 'H,,0 SHIMNG eaten *n, BRO, 
CoHag ts ck 
ere ,@8 cuminic “ “ & 943°. 
as homologous ety phenylic alcohol, the last member of this 
series, cuminic alcohol, ought to boil at 264°. 
Forming a hemilogous series out of such of thosé alcohols as 
answer to the general formula €, H,,, 0 we have: 
