796 Wisconsin Academy of Sciences, Arts, cmd Letters. 
mum, 2 ) Kalmia latifolia, 3 ) Kalmia angustifolia, 4 ) Gaultheria 
procumbens, 5 ) Arctostaphylos TJva Ur is, 6 ) Arctostaphylos 
glauca, 7 ) Vaccinium Myrtillus, 8 ) Vaccinium vitis , 9 ) Vaccinium 
macrocarpum, 10 ) Vaccinium arctostaphylos, 11 ) Calluna vul¬ 
garis, 12 ) Erica herbacea, 13 ) Pinus communis, 14 ) Protea milli- 
fera, 15 ) Chimaphila umbellata, 16 ) Chimaphila maculata, 17 ) and 
Pirola uniflora. 18 ) 
In addition to the above, the mono-ethyl ether of hydroqninone 
has been found in the oil of star anise, 1 llicium verum 19 ) Further¬ 
more it has been pointed out that the pentatomic alcohol of hexa- 
hydrobenzene, quercite, 20 ) may lose three of its hydroxy groups 
in the form of water and form hydroquinone as indicated by 
the following formula: 
3H 2 0 
CoH 7 (OH) 5 --> C„H 4 (OH) 2 
Pigments referable to toluene 
Toluene Hydrotoluquinone 
Methyl hydrobenzoquinone 
or 
Methyl hydroquinow 
Orcinol 
2 Wehmer, Die Pflansenstoffe, p. 570. 
3 Am. J. Ph., 47, p. 5. 
4 Am. J. Ph., 58, p. 417. 
15 Am. Jr. Fh., 46, p. 314. 
« Arch. Pharm., 227, p. 164; Am. Jr. Ph., 46, p. 314. 
7 Am. Jr. Ph., 46, p. 314. 
8 Monatsh f. Chem., 30, p. 77. 
9 Arch, exper. Path., u. Pharm., 50, 46. 
19 Chem. News, 52, 78. 
1 Apoth. Ztg., 16, 694. 
12 Am. Jr. Ph., 46, 314. 
33 S. Ber. Wien. Acad., 9, 308. 
34 Jr. Pharm. Chim. (7) 2, 248. 
15 B. 29, R. P. 416. 
19 An. Chim., 129, 203. 
17 Am. Jr. Ph., 46, 314. 
18 Am. Jr. Ph., 11, 549. 
19 Schimmel & Co., Oct., 1895, p. 6. 
20 Plant Pigments, p. 11. 
