APPENDIX. 175 
;: Alkaloid suspected to 
Reagent. Brucine. be Brucine, 
Bichromate of potas-|Copious yellow ppt., with es aed Maga ppt., with 
in acetic acid ce ee in large} difficulty soluble in large 
acid. 
solu SS of acetic acid. excess of acetic ac 
Platinic chloride... Thick ste tar ye + ppt.,| Thick yellowish floc. ppt., 
ith difficulty soluble in readily soluble in acotic 
wi 
acetic acid, but with ex-| acid, but almost imsolu- 
pine of a fon flocks| ble in NaHO. 
in 
Nal 
Auric chloride ..«| Dirty white floc. ppt. re en fours 13 dd ing Lah Yo 
- changing to fles 
soluble i in excess ie setic eens malice Beet Pris 
: acid, but insol. in Nallo. sol. in excess of aceti 
in N: 
acid, but insol. in O. 
Potassium ferrocyan-| Light yellow _ppt., — Light y pre ppt., sol. in 
_ ide. ate Fore *, The presence 
pres of acetic acid oF ‘pase: acid in slight 
in sight excess prevents worse 2a not prevent 
precipitation. ipitatio: 
Alcoholic solution of Rlookalic solution of alka- Alcohatic polities of alka- 
iodine. loid, rosette crystals. so _ no crystalline a 
m microscopic examina- 
0 
Two experiments were made to determine whether the alkaloid 
possessed any ie eA properties similar to brucine. In the 
first experiment *15 gramme was dissolved in three drops of acetic 
acid diluted with about ma drachms of water, and injected into a 
eat’s stomach at 11-21 a.m, 
11-37 A.m.—A quantity of half-digested food was vomited ; there 
was a good deal of frothy mucus and constantly dribbling saliva, 
movement of the jaws, and application of the paws to the mouth as 
if to remove some irritant matter; the animal restless and much 
distressed. 
12-30 p.w.—Frothy mucus and saliva still flowed from the 
mouth, but in smaller amount; vomiting ceased, but now and then 
retches; animal not so restless, 
1 p.m.—Discharge of saliva ceased; animal quiet, no further 
symptoms developed, 
In the next experiment *022 gramme of the alkaloid was dissolved 
in acetic acid, the solution evaporated to dryness, the residue dis- 
solved in a few drops of distilled water, and the solution hypoder- 
mically injected into the left hind leg of a small frog at 11-40 a.m, 
\ 
