132 Scientific Intelligence. 
perimenters have been led to believe that the method is useless. Fine 
moulding plaster, and not the common article, should be employed. The 
coal-tar, which is mixed with it in the proportion of 2 to 4 parts to a 
faces has been brought in contact with it. Gangrenous or putrid sores 
any more. Mixed with oil to the consistence of a thick pap, it forms 
poultices of convenient application, if they are made thick and broad. 
Within the limits which have been indicated the mixture of coal-tat 
Annalen der Chemie und Pharmacie, 1840, xxxiv, 2353 see also | 
lin’s Handbook (Cavendish Soe, Edit.), xiii, 50.—r. a, s.] 
a 
