PARASITICIDAL BEMEDIES. 239 



with a liquid of 1 part alcohol and 3 parts of water, Even this 

 liquid was found to adhere pretty much without running over 

 the fungous masses. A mixture of equal parts of alcohol and 

 water, marked as No. 12, adhered to the spores of the fungi even 

 better. 



June 15th. 



No. 1. None of the fungi exhibited the least trace of growth 

 on the brushed parts, but were found to be entirely dried up. 



Nos. 2 8, as well as No. 10, exhibited a luxuriant growth of 

 fungi. 



No. 9. No trace of fungi on the parts brushed over. 



Nos. 11 and 12 exhibited a slight formation of fungi only on 

 the corners left untouched by the ointment, and none at all on 

 the parts which had been rubbed over. 



The following alterations were then made : 



No. 1 was once more steeped in Tr. Veratri. 



Nos. 3 and 5 were treated with a solution of equal parts of the 

 hitherto employed mixtures and alcohol of 80 (?). 



Nos. 11 and 12 were once more brushed over with alcohol, as 

 on the 12th of June ; and a fresh piece was brushed over, as 

 No. 13, on three different sides, with Tinct. Veratri, alcohol at 

 80, and diluted alcohol. 



Nos. 2, 4, 6, 7, and 8 were not treated. 



June 19th. 



No. 1. Every trace of the formation of fungi had disappeared. 



Nos. 2, 4, 6, 7, 8 exhibited, as did No. 10, fine fungous 

 formations. 



Nos. 3, 5, 11, 12, 13, no fresh fungi the old ones had 

 shrivelled up. 



No. 9 still preserving its former protective power. 



The practical result which we may draw from these experiments 

 is the following : 



The tar-ointment approved and used from remote times in 

 various diseases of the skin is evidently an excellent parasiticide, 

 and we have only to regret that it acts no further than on the 

 parts which have come into direct contact with it, and which 

 have been rubbed over with it. It is therefore improbable that 

 it reaches the spores seated in the fissures of the skin, or destroys 

 those which are located in the follicles of the hair. 



