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This poison finds its principal use as an insecticide in 

 the preparation of poison baits for such insects as grass- 

 hoppers, termites, cut worms, beetle grubs and crickets. 



For use against cut worms, as a poison bait, mix 1 ft. 

 arsenic with 25 Ib. bran or pollard, and stir to a thick mash 

 with water to which molasses or sugar has been added to 

 impart a sweet taste. A tablespoonful in each hole at the 

 time of planting cotton or other seed will be found sufficient 

 to kill practically all the cut worms. 



For use against grasshoppars, take half-barrel of fresh 

 (or moist) horse droppings, 1 ft. salt and 1 ft. arsenic, and 

 thoroughly mix. Paris green or London purple may be 

 used instead of the arsenic. This mixture, put down freely 

 in small heaps containing a half-pint or less, in any field or 

 infested pasture, should give good results. 



For use against termites, when these appear in buildings, 

 a mixture of arsenic and sugar in the proportion of one of 

 arsenic to two or three of sugar will be found useful in 

 checking the increase of these pests. The covered gallery 

 of these insects should be broken away for an inch or two, 

 and the poispn ; put down on the broken portions. The 

 poison will be elateti 1 by a few ants, and these by others, so 

 that a small amount of poison thus applied will be dis- 

 tributed through the nest or colony. 



Arsenic also has an action as a contact poison and forms* 

 one of the constituents of certain cattle dips and washes for 

 the destruction of ticks. 



Corrosive sublimate. This is a very powerful poison 

 and it is not used for general insecticidal purposes. It has a 

 very injurious effect on the foliage of plants, and its extremely 

 poisonous nature makes it a dangerous substance to put into 

 the hands of ordinary labourers. It is useful for the purposes 

 of disinfection, since it has a f ungicidal action. It is employed 

 in the preparation of book solution, which is used to protect 

 the bindings of books from the feeding of cockroaches, 

 silver-fish and to some extent from that of the book worms, 

 which are the larvae of the cigarette or the drug store beetle. 

 Book solution is composed of the following materials : 

 Corrosive sublimate 1 oz 



Carbolic acid 1 oz. 



Methylated spirits 1 quart 



This mixture, applied to the binding of bojks by means 

 of a tine brush, is an excellent protection. The carbolic 



