1893.] THE MICROSCOPE. 95 



Mix thoroughly; strain through a well-boiled silk cloth (say 

 an old handkerchief) in this manner: Pour 4 or 5 ounces of 

 the thick solution in the centre of the cloth, gather up the 

 corners and sides, and twist them together so as to confine the 

 liquid in the centre. Then twist carefully to make a pressure 

 on the globular fluid mass, and force it through the cloth ; al- 

 low it to fall, in large drops, into the stock bottle. Some two 

 or three ounces may be secured from the above amount, but 

 this will last a long time. Pharmacists have other and better 

 methods of filtering gelatinous fluids. The above method 

 was used by the writer, and produced a clear, permanent 

 article. Amateurs and others, whose time is worth about 50 

 cents a day, may try the above formula. 



PRACTICAL SUGGESTIONS, 



To Cement Wood to Glass. — Gum some labels of paper to 

 the glass. If properly dried, nothing but scraping or soaking 

 will remove them. Then cement the wood to the paper, using 

 — virgin rubber, 2 parts ; resin, 1 part ; gum shellac, 2 parts. 

 Melt together and apply hot. — Sci. American. 



To Bore Holes in Glass. — Break off a part of the tip of a 

 three-cornered file, and grind a triangular point upon it. 

 Avoid heating it enough to injure the temper; then make 

 your holes in it just as you would make holes in wood, with 

 an awl, using turpentine to moisten the bearings of the glass. 

 The edges of the file can be sharpened with an oil stone. — Sci. 

 American. 



Pharmaceutical Study. — At the Trinity University, Tor- 

 onto, a school of pharmacy has just been established, and in 

 order to receive the degree of Phar. B. the candidate must pass 

 an examination in " botany, including microscopy." For the 

 degree of Phar. D. his advanced botanical work must include 

 either classification or bacteriology. 



Radam Microbe Killer. — In an advertisement contained 

 in the Canadian Pharmaceutical Journal for May, 1893, \\ m. 

 Radman informs the public that " our rates allow the retail 

 trade to make from 45 per cent, upwards on sales," and that 

 " druggists will be surprised at the sales they will make when 

 once they have the microbe killer in stock." 



