384 Intelligence and Miscellanies. 
is then to be filtered ; the starch which remains on the filter is 
washed with small quantities of water, and this being added 
to the former liquid, the whole is gently heated, in order that 
the hydro-sulphuric acid may be expelled. It may be evapo- 
rated to the spec. gray. of 1.5, and the hydriodic acid is thus 
obtained. pure.—Idem. 
28. Pluranium.—Two new metals have been discovered in 
the platina of Oural in Russia, by M. Osanna, to which he has 
ay the name of pluranium, (formed from the initials of pla- 
tina and Ural,) and Ruthenium. (Ruthena, Russia.) e 
process for obtaining the first has been published, and the 
correctness of the inferences which determine the existence 
of a new metal, has been confirmed by Berzelius.—Idem. 
29. Bichromate of Potash.—The solution e this salt, which 
is used extensively in dyeing at the manufactory of Borrow- 
field near Glasgow, was found to produce ulcerations upon 
of the workmen, which without extending much 
had so remar 
on the 
depth, Wak’ ia ‘one case it perforated the hand from side to 
side. Some individuals were found to be much more easily 
affected by it than others. Not only were the hands ulcera- 
ted, but swelling of the face and inflammation of the eyes were 
produced. Even the simple handling of the stuff, after it 
came from the vat, was sufficient in the more a 
cases, to produce eruptions. Other solutions employe 
dyeing, occasion sometimes inflammations and various affec- 
tions of the parts exposed. Thus, the solution of chloride of 
lime softens and sometimes destroys the nails and causes 
painful excoriations. 
Guided by these observations, Dr. Cumin employed a sat- 
urated solution of bichromate of potash in the treatment of 
warts and sy ic excrescences. In some instances they 
“elas aed a female of an immense number of warty erup- 
tions, _— _— resisted all other niece of treatment.—Idem 
Sa wise 
=e 
