THE ALUMNi JOURNAL, 



151 



Neues pharmaceutisches Manual. — Unter 

 Beihilfe von E. Bosetti, herausgegeben von 

 Eugen Dieterich. 6 vermehrte Aufl. Ein 

 Band, 740 S. Berlin: J. Springer. 



Kurzes Repetitorium der Pharmacopceia 

 practica. Wien: M. Breitenstein. 



Tecnica farmaceutica secondo la farniacopea 

 officinale ed il codice dHgiene. S. Plevani. 

 Mailand: F. Vallardi. 



Physics. 

 Elemente der Iheoretischen Physik. — C. Chris, 

 tiansen. Deutsch von J. Miiller. Mit einem 

 Vorwort v. E. Wiedemann. Liepzig: J. A. 

 Barth. 



Therapeutics. 



A Manual of Therapeutics. — By A. A. 

 Stevens. Prepared especially for students as 

 an outline of modern therapeutics to be filled in 

 by larger works, together with an article on 

 Incompatibility in Prescriptions by Joseph W. 

 England. Cloth 12 mo., pp 435. Philadelphia, 

 W. B. Saunders. 



Miscellaneous. 



Die Riechstoffe und ihre Verwejidung zur 

 Hersteliung von Duftessenzen, Haarolen, Po- 

 maden, Riechkissen, etc.. sowie anderer kos- 

 metischer Mittel. — S. Mierzinski. 7, (Titel-) 

 Aufl. Weimar : B. F. Voigt. 



THE MOST RECENT WORK. 



Free M literal Acids in Presence of Organic 

 Acids. — E. Nickel recommends the following 

 process for detecting of, say. hydrochloric acid 

 in vinegar : weigh the sample with a large 

 quantity of phloroglucinol and then boil for 

 some time with a piece of pine wood or bam- 

 boo. After further contact for about 12 hours, 

 the wood will assume the well-known character- 

 istic color if any free mineral acid is present. — 

 Chetn. Zeit., 1894, 1670. 



Benzoic Acid Odor. — Benzoic acid, prepared 

 "by various methods has no odor while in the 

 crystalline condition, but if volatilized in the 

 vapor of water, or dissolved in dilute alcohol, 

 or if a solution in a 0.6 per cent, aqueous solu- 

 tion of sodium chloride is inhaled in the form 

 of a spray, the characteristic odor is at once per- 

 ceived. New results, together with the observa- 

 tions previously made on conmarin, vanillin, 

 etc., indicate that apparently inodorous sub- 

 stances may be divided into two groups, viz. , 

 those that are truly inodorous under various 

 conditions and those that are only inodorous 

 under certain particular conditions, but dis- 



tinctly odorous under other conditions.— /oar. 

 Chem. Soc. (Abst..), 1894, 247; from Compt- 

 rend., 1894, 481. 



Syrup of Lime.-C.W. Patterson prepared seven 

 samples of syrup of calcium for the purpose of 

 determining the percentage of calcium oxide 

 present and the Sp. Gr. of the same. The lime 

 used was taken from the interior of a large 

 piece, tested and found free from calcium car- 

 bonate. Four were prepared by the U. S. P. 

 formula and three with the modification that 

 instead of evaporating 70 Gms. enough of the 

 filtrate was evaporated to make it measure 100 

 Cc. This latter modification does not aflfect 

 the Sp. Gr. or the percentage of calcium oxide . 

 In estimating the amount of calcium oxide, 

 decinormal solution of oxalic acid and deci- 

 normal solution of hydrochloric acid were both 

 used. Taking the average of the results ob- 

 tained the syrup of lime contains 2.69 per cent, 

 of calcium oxide and has a Sp. Gr. of about 

 1. 164. The samples prepared were of a color- 

 less or but pale straw color. This gives a pre- 

 paration averaging 1.14 per cent, more calcium 

 oxide than the Liquor Calcis Saccharatus (B. 

 P.). In the Nat. Disp. the formula there given 

 is a compromise between the U. S. and British 

 formula. 



For the purpose of finding out whether heat 

 is necessary in the U.S. P. formula, four sam- 

 ples H. I, J and K were prepared as follows : 



The lime and sugar were triturated together 

 and placed in a bottle containing 80 Cc of water 

 and shaken occasionally, H for 24, I for 48, J, 

 and K for 60 hours. Then the mixtures were 

 filtered and water added to make the product 

 measure 100 Cc. The results obtained show 

 that as satisfactory a product can be obtained 

 without heat as by the oflBcial formula, but the 

 time necessary is much longer. 



sp. G. at Percentage 



15° C. of Calcium Oxide. 



H 1. 160 2.3800 Stood 24 hours. 



I 1. 172 2.6301 " 48 



J 1. 160 2.6530 " 60 " 



K 1. 164 2.7267 " 60 " 



Average of I, J 



and K i.:65 2.6750 



A review of the companion to the latest 

 edition of the British Pharmacopoeia, published 

 in the Pharmaceutical Journal and Transactions 

 for June 16, 1894, states that in the preparation 

 of the Liquor Calcis Saccharatus it is better to 

 dissolve the sugar in the water before adding 

 the lime. To test this with the United States 

 preparation one sample was prepared by dis- 

 solving the sugar in the water and adding the 

 lime to the boiling solution. The boiUng was 



