BRITISH AND UNITED STATES PHARMACOPOEIAS. 205 
Tragacanthae Compositus, L. Quinae Sulphas, D.,U.S.,L. 
Sodae Carbonas Siccatum, L.,D.,U.S. Sodae Murias Pururn. 
Spiritus Cassiae.1 Strychnia, L. # Syrupus Croci, L. Syrupus 
Ipecacuanhae.* t Syrupus Rhamni, L.,D. Syrupus Rhoeados, 
L.,D. Tinctura Aurantii, L. Tinctura Bucku, D. Tinctura 
Capsici, L.,U.S.,D. Tinctura Cardamomi Composita, L.,D. 
Tinctura Cassiae. Tinctura Colchici [Seminis], D.,L.* Tinc- 
tura Iodinei, D., U.S. Tinctura Lactucarii. Tinctura Lobeliae, 
U.S. Tinctura Lobeliae Aetherea. Tinctura Quassiae Com- 
posita. Tinctura Valerianae, L.,D., U.S. Trochisci Lactucarii. 
Trochisci Morphiae. Trochisci Morphiae et Ipecacuanhae. 
Trochisci Sodae Bicarbonatis. Unguentum Cocculi. Unguen- 
tum Creasoti, L.* Unguentum Gallae et Opii,L. Unguentum 
Precipitati Albi, L.,D.,U.S. Unguentum Iodinei, D.* Un- 
guentum Antimoniale, D.,L.* Veratria, L.* Vinum Col- 
chici, U.S.,L. 
Most of the substances in the above list are taken from 
other Pharmacopoeias. The length of the list, though incom- 
plete, shows how necessary the revision of the Ed. Pharma- 
copoeia had become, after the lapse of twenty-two years. The 
articles derived from the works indicated by the initials, re- 
quire no further notice ; but a few of those which are not so 
derived may be briefly commented on. 
Canna. Tous-les-mois. This is the starch of the Canna 
Coccinea, a substitute for arrow-root, from which it is not 
easily distinguished, except by the large size of its globules 
under the microscope, and their glistening appearance to the 
naked eye. According to Dr. Christison. it makes a stifFer 
jelly than arrow-root. 
Chiretta. Infusum chirettae. Chiretta. Infusion 
of Chiretta. The Chiretta was first described by Fleming 
in the Asiatic Researches, under the name of Gentiana Chi- 
rayta. It was afterwards separated from the gentians by Mr. 
Don, who formed it into a new genus under the name of 
Jigathotes Chirayta. It grows in India, and is much es- 
♦Made officinal in the U.S. Pharm. of 1842. 
