Gr. H. F. Nuttall 
535 
Ref. 
No. 
419. Mercury, chloride (HgCl, calomel), for capitis and pubis. 
It is stated to kill lice readily by Leach (1817). Calomel pomade, 
consisting of calomel 1 pt and vaseline 20 pts is recommended by 
Lagane for capitis where excoriations are present. Dubreuilh and 
Beille advise it for pubis in preference to blue ointment. 
Expt 60: lice in contact therewith in a box survived 48 hrs. This 
does not mean that it may not act when on man. 
420. Mercury, oleate (5 %) 1 oz. and ether 1 oz., for capitis and pubis. 
Apply to head, removing crusts with carbolized oil (Morris). 
Castellani and Chalmers give the oleate and ether in the pro¬ 
portions 3 : 1 for pubis whose active stages and nits are stated to 
be thereby killed. 
421. Mercury, oxide, for capitis, corporis and pubis. 
TJnguentum hydrargyri oxidi rubri (red mercuric oxide ointment 
or “red precipitate ointment”), Brit. Pharm., consists of red mer¬ 
curic oxide in powder 10 g., paraffin ointment 90 g. ( Ung. paraffini 
(B. P.) consists of hard paraffin 27 g., soft paraffin 70 g., white 
beeswax 3 g.). Employed by some in preference to blue ointment. 
422. Yellow mercuric oxide ointment is recommended for pubis by some 
authors. Eischer used a 1 % ointment for application to the eye¬ 
lids, a 5-10 % ointment for the head, stating that it cures quickly. 
It was used by Brault. Renault prescribed a 2 % ointment applied 
daily for a week in a case of infestation of the eyebrows and lids, 
thereby killing the lice as they emerge from the eggs which resist 
when the active stages succumb. Darier (n. 1918, p. 223) advises 
the abandonment of blue ointment preferring 10 % yellow oxide in 
vaseline with 1% salicylic acid as it does not cause injury. 
423. Naphthaline alone in sachets (linen bags) or powder, for corporis, 
was recommended by Blaschko (i. 1915), the sachets containing 
30-50 g. per man and being worn about the neck. In conjunction 
therewith he advised occasionally dusting it on the neck whence 
it could drop down into the clothing. Axenfeld tried sachets 
(5-10 g.) worn between shirt and uniform by soldiers in the 
Galician trenches, apparently with some benefit; the sachets lost 
0-1 g. weight per day from evaporation. 
Meltzer thought the sachets useful in keeping away lice from 
clean men. Galewsky used them on cleaned Russian prisoners 
besides dusting naphthaline about their necks and into their socks; 
he recommends the method because after 3 weeks but a few lice 
