The Limonene Group of Terpenes. 
351 
Properties , etc. 
1 Annalen, Bd. 227, p. 291 and 301. 
2 Ibidem, Bd. 252, p. 144. 
3 Ibidem, Bd. 246, p. 222. 
4 Dissertation, p. 38. 
5 Compare also F. Scheidt, “ Ein Beitrag znr Kenntniss der Terpene 
Bonn, 1890. 
6 Annalen, Bd. 252, p. 145. 
1 1bidem, Bd. 246, p. 224. 
8 Dissertation, p. 9. 
9 Berichte, Bd. 12, p. 2357 and 
Ibidem, Bd. 20, p. 1956. 
10 Dissertation, p. 51. 1 
n Dipentene is always found as an impurity in artificial terpinene 
Annalen, Bd. 230, p. 261, and 
Ibidem, Bd. 239, p. 38. • 
12 Annalen, Bd. 230, pp. 247 and 262, and 
Ididem, Bd. 239, pp. 2, 23 and 51. 
13 Oppenheim; Berichte, Bd. 6, p. 915, and 
Ibidem, Bd. 7, p. 627. 
Wright: J. C. S., vol. 21, p. 686. 
15 Only such data were considered that were deemed sufficient proof 
i. e. those in which optical properties are included. 
16 1840 — Soubeiran & Capitain, J. d. Pharm., T. 26, p. 1. 1885 — Wal- 
lach, Annalen, Bd. 227, p. 290. 
17 1840 — Soubeiran & Capitain 16 . 1877 — Tilden, J. C. S., Vol. I., p. 
554. 1884 —Wallach — Annalen, Bd. 225, p. 318. 
18 1854 — M. Berthelot, Ann. Chim. Phys. T. 40, p. —. 
19 1857 — S. de Luca, Compt. rend., T. 45, p. 904. 
20 1885 — Wallach, Annalen, Bd. 227, p. 290. 
21 Ibidem, p. 291. 
22 Ibidem, p. 292. 
23 Ibidem, p. 292. 
24 1885 — Yoshida, J. C. S.,Vol. 47, p. 787. 
25 1888 — Wallach, Annalen, Bd. 246, p. 221. 
26 Annalen, Bd. 252, p. 109. 
27 Ibidem, p. 111. 
28 Ibidem, pp. 121 and 136. 
29 Ibidem, Bd. 227, p. 296. 
80 Ibidem, Bd. 238, p. 80. 
81 Ibidem, Bd. 252, p. 102. 
32 Ibidem, p. 101. 
33 Ibidem, Bd. 230, p. 224 and Bd. 239, p. 26. 
34 Ibidem, p. 246. 
