316 BOTANICAL INFORMATION. 
1. Oil of Lemon Grass, or Citronelle, the produce of Andropogon 
citrorum, is exhibited from Travancore, and also from Ceylon by Mrs. 
Goodsir. i 
2. Roussa-grass Oil, the produce of Andropogon Calamus-aromaticus, 
is exhibited from the Nizam’s territories, by Dr. Riddel: this is found 
to be a good substitute for the more expensive Cajeput Oil, and is.a 
useful rubefacient. : 
3. Cardole, a thick, black, oily substance, obtained from the pericarp 
of Anacardium occidentale, the Cashew Nut, is exhibited from Tanjore 
(Local Committee), and by Lieutenant Hawkes. It is a powerful 
vesicating agent. 
4. Borneo Camphor, the produce of Dryobalanops Camphora : a small 
quantity was brought over from Labuan, as a curiosity, by Second 
Dresser Pulnyandy. 
5. Country Sarsaparilla, the roots of Hemidesmus Indicus, have been 
sent from almost every district, but they vary considerably in aroma, 
the bundle from Trichinopoly being the best. 
—. Syrup and extract from the indigenous plant growing at the foot of 
Courtallum Hills, by First Dresser C. Appavoo Pillay, Tinnevelly. 
Dr. A. J. Scott has forwarded a crystallized principle, called “ Hemi- 
desmine,” which is found on examination to be an entirely new sub- 
stance, exhibiting a remarkable indifference both to acids and alkalies, 
erystallizing in a peculiar manner in hexagonal plates, which are sub- 
ject to rapid efflorescence. The only ascertained solvents are alcohol 
and ether; it is perfectly insoluble in water, both cold and hot. These 
_ facts show that it is a substance of a very peculiar nature. The Jury 
. recommend that this preparation be fully tested in hospital practice, 
along with the extract and syrup prepared from the same plant, and 
forwarded by First Dresser ©. Appavoo Pillay. In consideration of 
Hemidesmine being a new product, the Jury award a First-class Medal 
_ to Dr. Scott, and to C. Appavoo Pillay honourable mention. 
_ The late Mr. Gay’s specimens of various pharmaceutical preparations, 
including Omum Water, Crystallized Sugar of Omum, Wine of Sarsapa- 
villa, Essence of Sarsaparilla, and Croton Oil, are considered creditable, 
and deserving of notice. 
- (To be continued.) 
