7 FEBRUARY 1835, Page 19

In the Philosophical Magazine for this month, we observe a

very use- ful paper, by Mr. Everurr, on the means of procuring Hydrocyanic or Prussic Acid, of uniform strength, for medical purposes. The danger sometimes arising from the exhibition of this acid, from the difficulty of procuring it of a uniform degree of strength, renders the subject very important. The same Number, among other articles, contains also a valuable paper by Mr. DAVID MUSIIET, on the Alloys of Iron and Copper.