Gr. H. F. Nuttall 
525 
Ref. 
No. 
382. Carbolic acid, crude, 5 % in soap solution, for corporis. 
Expt 20 (footnote): 3-5 % solution killed immersed nits and lice 
in 2 hrs. Expts 332, 336: some lice survived 18-20 hrs contact with 
flannel wrung out in the emulsion and worn next the skin. 
383. Carbolic acid 2^ %, and phenol 2^ %, for corporis. 
Used for impregnating underwear (see No. 106) is merely 
palliative if that. 
Expt 12: carbolic acid 2| % killed all nits in 10 minutes when 
immersed. Expt 349: carbolic acid 4% immobilized pubis in 
3 minutes but they recovered from 5 minutes’ immersion. 
Carbolic acid and naphthaline, etc., see under Naphthaline (Expts 
296-7). 
384. Carbon bisulphide, for corporis on clothing and furs. 
The clothing is placed in galvanized iron boxes of 2 cbm. capacity 
with lids sealed by a water-filled gutter. The CS 2 to the amount of 
150 g. is poured into a plate placed on the clothes, which are 
exposed in the closed boxes overnight at room-temperature. Under 
experimental conditions 100 g. of CS 2 sufficed to kill lice and nits. 
The method has given good results in war prisoners’ camps in 
Germany. By evaporating a sufficient quantify of CS 2 in a her¬ 
metically sealed room, the same results can be obtained on a larger 
scale. The method is specially applicable to furs (Kisskalt and 
Friedmann, Kisskalt, Friedmann). 
CS 2 is highly inflammable and there is a danger of explosions. 
It is poisonous when inhaled but the smell affords a safeguard. 
Greasy objects should not be exposed to CS 2 because fats absorb 
it. The method has the advantage of not injuring fabrics and furs 
and of being applicable without special apparatus. CS 2 diffuses 
rapidly. (See p. 554, CS 2 used for S0 2 production.) 
Expts 14-16: nits immersed therein are killed in 10 minutes but 
not in 3 minutes. Expts 145-149: the vapour kills lice in 6 minutes, 
and nits in |-2 hrs. Expts 244-245: the vapour used effectively in 
Amsterdam Corporation waggons and boxes, killing nits in 24-48 
hrs. Expt 350: pubis immobilized at once wKen immersed in CS 2 
and killed in 1| minutes; killed by vapour in 3 minutes. 
385. Chloride of lime added to bath, for corporis. 
A “penny packet” added to water after a hot bath, “lie soaking 
in it for 5 minutes; the effect marvellous” (J. Cryer, cited by 
Shipley). It is not stated in what the “marvellous effect” consists. 
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