_ investigations. One then obtains | : : 
ts SS aie a0. p= —1924e + 001207 @. | 
The- a ay of”. the values observed for p with those c 
these formulz is explained by another ‘summary in ‘the original. 
the solution in question varies. between — 0.03 and semis) 16 per cent “ 
_ For solutions of menthol ina mixture of 2 ae of phenol and 
the relations are as follows: — tae BO Es ee a 
i Wa 2415. -O Bek) Sonne a 
. es. | aoe no Pes 
ed 
ie or VAR 
: p = — 1.92246 + 0.01023 a 
: j For a solution of menthol in an equal quantity of eugenol the 
_ 2.108 « op 
be. and 2 sik Tl | 
tb . | p= 1. 9215.0 cea 0.01001 a, } 
‘ For menthol in phenol and eugenol (1 + 2) the values are: rex 
aaa : DAOBb a artes hy ae 
Bor.’ Ris a ae ae eo 
a : p = —1.914a + 0.01023 2, , ed Pare 
Mi | 
; 
| solutions in phenol than for those in a 
i power of the menthol from the, increase of the specific rotation witt 
AN phenol or eugenol, respectively, according to the general formula — 
* [ep = A+ Bq+-Cqt | 
_ have led to the following equations, the first of which also 
rotations of such phenol solutions as do not occur in the | 
4 _ One finds for solutions in phenol — pia ene 
exh, +4: ae | hey any 3 Oa — 48. 24 4-007 oe 
and for ‘solutions in weesen yg : 
Becher eet ile. 
Prae! bits 
