THE JOURNAL OF PHARMACOLOGY. 141 



16. Give details of an extemporaneous method of preparing Ouitiin Hydrobromid 

 from the Sulfate, or Bisulfate. 



17. Is there any variation in the chemical composition and activity of commercial 

 Aconilinsl If so, explain the causes. 



18. How would you extract and identify the alkaloids present in a tincture of Bel- 

 ladonna Root? 



19. How is Glacial Acetic Acid prepared, and detail its various uses ? 



20. How would you identify the presence of free Hydrocyanic Acid in natural oil 

 of bitter almond ; also how may this be removed from the oil ? 



21. You have a prescription calling for one avordupois ounce of 3 per cent. Oleate 

 of Morphin. State : 



(a) How many grains of Morphin will be required ? 



(<!>) How many grains of Morphin Sulfate will be required to furnish the re- 

 quired number of grains of Morphin ? 



22. Pepsin uin : 



(a) From what source is it obtained ? 

 {b) State in detail how it is obtained from this source. 



{c) How many times its own weight of freshly coagulated and disintegrated egg 

 albumin should it digest? 



23. Name the chief characteristics of the following groups oi fixed oils : 

 (rt) Olive Oil group. (t) Cotton Seed Oil group. 

 [d) Linseed Oil group. {d) Tallow group. 



24. Give three tests by means of which you would establish the presence of Albu- 

 min in urine. 



25. What is the source of Creosote:^ Name its chief constituents and state which 

 one of these is employed for internal medication in preference to Creosote. Why is 



it preferred ? 



26. Opium Deodoratutn : 



(a) State how it is prepared. 



{b) State the per cent, of Morphin it should contain. 



{c) State in what respects it differs from powdered opium. 



27. Acetic Acid : 



{a) Give two sources. 



(b) Name the official kinds, giving strength of each. 



{c) State how the presence of empyreumatic substances is detected. 



28. Give an outline of a process for the manufacture of Ammonium Benzoate, nam- 

 ing the materials employed, and stating what precautions must be observed. 



29. Hydtargyri lodidum Flavum : 

 (a) Give its synonyms. 



{b) State how it is prepared. 



(c) State how it is affected upon exposure to light. 



30. How is Oleoresina Piperis prepared? State whether the crystals of Piperin 

 which are deposited in the finished product should be rejected, or reincorporated. 



Chemistry. 



I. Phosphorus, 

 (a) Name source. 

 {h) Give methods for its qualitative and quantitative estimation when present in 



organic matter, 

 (r) Gives names, formulse and tests of identity for five acids of phosphorus. 



