May, 1918 



C. U. C. P. ALUMNI JOURNAL 



85 



CaClj + 2H2O is 147.02 

 A gramme-molecule solution of this 

 wouid contain 



147.02 grammes CaClg 2H2O in 1000 



mils 

 A sixth gramme-molecule solution would 

 contain 



147.02 ^ 6 = 24.503 grammes CaCla 



2H2O in 1000 mils 

 1000 mils represents 33 fluid ounces. 

 12 fluid ounces are approximately 360 

 mils. 



Hence in 12 fluid ounces (360 mils) we 

 will need 



360 

 "Y^ X 24.503 or 8.821 grammes 



CaCl^ 2U,0 



If any of our readers have better in- 

 formation on the subject, we hope they 

 will share it with us. 



Unguentum Plumbi et Gallae. — B. J, 



G., New York. — We have been unable 

 to find a recipe for this preparation in 

 the score or more of books that we ex- 

 amined. The nearest we can get to it is 

 a recipe for unguentum plumbi tannici 

 which is prepared according to Hager's 

 "Handbuch" 1913, volume I, page 139, 

 as follows: 



Recipe of First German Pharmacopoeia : 



Oak bark . . .' 50 grammes 



Distilled water 250 grammes 



Solution of lead 



subacetate 25 grammes 



Glycerin ointment .... 16 grammes 



Make a decoction of oak bark with 

 the water and mix strained and cooled 

 decoction, with the solution of lead sub- 

 acetate. The resulting precipitate is col- 

 lected on a filter, is expressed until it 



weighs 25 grammes, after which it is 

 mixed with the glycerin ointment. 



Recipe of the Third German Pharmaco- 

 poeia : 



One gramme of tannic acid is tritur- 

 ated with 2 grammes of solution of lead 

 subacetate and is then mixed with 17 

 grammes of lard. 



The glycerin ointment used in the first 

 recipe is a glycerite of starch made by 

 triturating 2 parts of wheat starch with 

 one part of distilled water and then with 

 10 parts of glycerin, after which the 

 mixture is heated on a steam bath until 

 a jelly is formed. 



Sweet Basil.— Z. O. M., New York. 

 — This is a name for the aromatic herb, 

 Ocimum Basilicum, a plant of the Nat- 

 ural Order Labiatae. 



Pharmacology of Aloes. — D. P. H., 



New York, desires to know what differ- 

 ence, if any, exists in the .medical proper- 

 ties of the various types of aloes. Refer- 

 ence to the books in our library including 

 works on pharmacology failed to give 

 any information beyond the fact that dif- 

 ferent varieties of aloes contain distinctly 

 different amounts of aloin and hence 

 some have stronger purgative action than 

 others. We are informed, however, that 

 to some persons having an idiosyncrasy 

 in that direction the action of Barbadoes 

 and Curacao Aloes are so* distinctly dif- 

 ferent that the cause cannot be ascribed 

 merely to variation in aloin content. 

 Perhaps some of our readers may be able 

 to throw more light on this interesting 

 subject. 



