Droplets of coniine were applied to various parts of blow-flies, which were then placed under glass shades.
coniine forms with carbon disulphide a thiosulphate and a sulphite.
Dragendorff experimented on the action of coniine when given to five cats, the quantities used being ·05 to ·5 grm.
Conium owes its active properties to a volatile liquid alkaloid, coniine, united with a crystalline alkaloid, Conhydrine.
The saturated watery solution of coniine at 15°, becomes cloudy if gently warmed, and clears again on cooling.
If coniine itself is added to carbon disulphide, there is evolution of heat, separation of sulphur, and formation of thiosulphate.
coniine thus prepared is a colorless oily liquid, volatile at the ordinary temperature, and has a specific gravity of 0.886.
If placed in a current of air in the sun, a fly completely under the influence of coniine may recover.
All the above have a similar physiological action to coniine.
Great care must be exercised in identifying any volatile alkaloid as coniine, for the sources of error seem to be numerous.