2 FARMERS* BULLETIN 808. 



lungs, or th»j!i^i,n; tl'ciitfwrv 'Ji^ither the dry powder nor the solution 

 should be alltiwVd tf) Vertjiuh on.thc skin. The breathing in of dust 

 arising fi'o^if.i-l«r.'Tp\l:if)\T(ti»r. (firing handling must be avoided, 

 while, if'caftleVre l>ein*g sprayed, neither the operator nor the cattle 

 should inhale any of the spray. Moreover, from a boiling solution 

 arsenic may be thrown out as a fine spray and also, under certain 

 conditions, as the very poisonous gas " arsin." Hence, concentrated 

 dips should be prepared only in thoroughly ventilated places, while 

 all work should be done on the windward side of the kettle and as 

 far from it as practicable. 



If arsenic in any form has been swallowed, medical attention is 

 to be obtained as soon as possible; but since promptness of action is 

 of very great impoi-tance and medical attention is not always readily 

 available, it is best for all who use arsenical dips to be familiar with 

 first-aid treatment. The United States Dispensatory (nineteenth 

 edition) has the following to say in this matter: 



If the iiutidote * * * be not directly at hand, free vouiitinjr should be 

 induced by the finger, the feather part of a quill, and the adniinistriiiiou of an 

 emetic; * ♦ * Demulcent drinks should be freely given, such as milk, white 

 of eggs and water, or flour and wnter. which serve to encourage the vomiting 

 and to envelop the poison. 



The antidote having been faithfully applied, the subsequent treatment con- 

 sists in the administration of mucilaginous drinks and the treatment of 

 symptoms as they arise. 



The antidote above referred to is * ♦ ♦ ferric Jiydrnxid with iinujncsium 

 oxid in the moist or pulpy state. As soon as it is ready it must be given in 

 doses of a tablesr>oonful to an adult, of a dessertsi>oonful to a child, every 

 five or ten minutes until the urgent .symptoms are relieved. * * * Its 

 etficacy is, of course, greater the sooner it is administered after the ingestion 

 of the poison ; but even after delay its use will prove advantageous so long 

 as any portion of the poison still remains in the stomach. • * * It should 

 be an invariable rule to prepare the antidiite at the time it is wanttnl from 

 materials always kept at hand. * • * 'phe best antidote known is the 

 combination of ferric hydroxid with magnesium oxid now recognized by the 

 U. S. Pharmacopojia. 



The materials for tiie anlidoio referred to can ho supplied by any 

 prescribing jjhannacist, contained in two bottles. In this separated 

 form the antidote keeps well, and when an emergency calls for its 

 use all that is necessju'y is to mi.\ thorougiily the contents of the 

 two bottles and to admini.ster as directed. But in any case medica' 

 attention must be obtained as soon as possible. 



Sodium carhonate. — Also known as sal soda or washing soda, 

 when fresh consists of colorless trai\spar(Mit crystals. On koejiing, 

 unless (iirhtiv dosed fi'oiii the aii\ it tt'iids to lose its crvstalliiie 

 apjx'arancx' and to fall to a while jiowder. This change is duo 

 merely to the fact that the crystals carry a large ainoinit of com- 

 bined water (water of crystallization), auJ on exposure to the air 



