358 
Wisconsin Academy of Sciences, Arts and Letters. 
ad Terpineol. 
1 Although much has been written about “ Wiggers’ terpinol ” this term 
did not originate with Wiggers, but with List. List’s terpinol is not identi¬ 
cal with Wallach’s terpineol but a mixture of the latter substance with 
hydrocarbons C 10 H 16 (probably dipentene and terpinene). However, 
Berthelot 3 already employed the term terpinol for a substance C 10 H 18 O, 
whereas Oppenheim 4 . falls back upon List’s formula C 20 H 34 0, although 
he acknowledges that the substance under consideration is most likely 
no chemical unit and even quotes Gerhardt 4 , wlio does not believe in the 
existence of such a body. Tilden 5 . again declares List’s terpinol to be a 
mixture, nevertheless he retains the term for his monatomic alcohol 
C 10 H 18 0. The same must be said of Tanret 6 . 
2 Annalen, Bd. 67, p. 362. 
3 Ibidem, Bd. 83, p. 106. (Compt. rend., T. 34, p. 799.) 
4 Ibidem, Bd. 129, p. 149. 
6 J. C. S., Vol. 33, p. 247, and 
Ibidem, Vol. 35, p. 286. 
6 Ibidem, Vol. 48, p. 990. (J. de Pharm. [5] T., 11, p. 506. 
7 Berichte, Bd. 12, p. 2354, and 
Ibidem. Bd. 20, p. 1956. 
8 Annalen, Bd. 230, p. 254.* 
9 Compt. rend. T. 104, p. 996. 
10 Annalen, Bd. 57, p. 252. 
11 Compt. rend., T. 102, pp. 50,318, 433 and 1155. 
12 Ibidem, T. 54 ?, p. 845. 
13 Bouchardat and Voiry 9 claim to have obtained crystals of “ tepilenol” 
prepared from terpin, that melted at 30-32°. 
14 Annalen, Bd. 230, p. 265. 
15 Terpineol from its acetate (from pinene) 218-223° B. & L. 11 
Terpineol from terpinhydrate 218 ° B & V. 9 
“R-Terpenhydrat ” of Flawitzky 7 213.7-217.7°. 
“ L-Terpenhydrat ” of Flawitzky 7 217.7-220.7°. 
16 Comp. “ Cautschene Monochlorhydrate ” B. & L. u 
Comp. Terpineol, Wallach, Annalen, Bd. 239, p. 21. 
17 From acetate prep, from —pinene [a:] = — 64.3 ° B. & L. 11 
“L-Terpenhydrat of Flawitzky” 7 [a]^ = — 56.2 °. 
“R-Terpenhydrat of Flawitzky” 7 [u] = + 48.4°. 
“ Terpilenol” from citrene through the acetate [a] = + 67° 31' La- 
font. 12 
