...One of the best ways to makethis is to place in a wide-mouthed bottle two or threelumps of cyanide of potassium, approximately an inchacross... 
Clarence M. Weed 「Butterflies Worth Knowing」
...The special advantage of the sawdust is that it tends toabsorb the cyanide in case it liquefies, as it often does indamp weather...
Clarence M. Weed 「Butterflies Worth Knowing」
..."Tests on 40 pound dogs with 1 and 2 grains of cyanide of potassium in capsules caused the dogs to vomit in about fourteen minutes, after which they fully recovered...
A. R. (Arthur Robert) Harding 「Wolf and Coyote Trapping」
...If it is desired to preserve the specimens, they should be killed either with cyanide of potassium, ether, or chloroform...
Edward Saunders 「Wild Bees, Wasps and Ants」
...The objections to cyanide are its very poisonous nature, and the stiffness which is caused by its use to the specimens killed by it, and also its tendency to turn yellow colours red...
Edward Saunders 「Wild Bees, Wasps and Ants」
...of cyanide...
Montagu Browne 「Practical Taxidermy」
...53, which isa combination of the "drum" and cyanide bottle, and will be foundvery useful for skittish insects...
Montagu Browne 「Practical Taxidermy」
...A, represents a cyanide bottlewith no neck — a wine or ginger-beer bottle cut down, byfiling it around, and then tapping it smartly, does very well onan emergency...
Montagu Browne 「Practical Taxidermy」
...The cyanide bottleshould be held with the left hand, and the insect gently"flicked" in with a disengaged finger, the cork held in the righthand to close the bottle as quickly as possible...
Montagu Browne 「Practical Taxidermy」
...Rotenone acts more slowlythan cyanide, allowing more of the distressed fish to rise to the surface...
James Everett Deacon 「Fish Populations, Following a Drought, in the Neosho and Marais des Cygnes Rivers of Kansas」
...--Dissolve one ounce of chloride ofsilver in a solution of two ounces of cyanide of potassium, previouslydissolved in one quart of water...
Henry H. Snelling 「The History and Practice of the Art of Photography」
...In the absence of cyanide of potassium, a solution of pure hyposulphite ofsoda will answer as a fair substitute...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...“The cyanide of potassium, so often alluded to while treating of themetallo-cyanides, may be formed in several ways...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...To any desired quantity of chloride of silver in water add, little bylittle, cyanide of potassium, shaking well at each addition, until all thecyanide is dissolved...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...Continue this operation, and add the cyanide, untilall the precipitate is taken up and held in solution...
Samuel D. Humphrey 「American Handbook of the Daguerrotype」
...My third failure waswhen we failed to get a sufficient concentration of cyanide gas intothat hole in a hurry...
Victor Rousseau 「Astounding Stories of Super-Science January 1930」
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