(sugar and water); but in chemical solution the 

 reverse is the case. Ex. The officinal solution of 

 nitrate of mercury. 



How may solution of solids be facilitated? By 

 pulverizing the substance the extent of surface 

 exposed to the solvent is increased, and by agitation 

 the frequency of the contact is augmented, thus 

 favoring the rapidity of solution. Heat, by causing 

 convection currents in the liquid, facilitates solution, 

 and as heat works against cohesion, it increases the 

 solubility of the substance. 



May saturated solutions be used as solvents? 

 Yes; a liquid saturated with one substance is still a 

 solvent for another substance. 



What effect has solution upon temperature ? 

 Simple solution lowers temperature; chemical solu- 

 tion raises temperature. 



What change was made in Dover's Powder in the 

 U. S. P. of 1880? Sugar of Milk was substituted 

 for Sulphate of Potassium. 



Is the tincture of Chloride of Iron a Ferrous or 

 Ferric Solution? Ferric. 



To what extent is Camphor soluble in water? 

 Five grains to the pint. 



To what class of preparation do Tannin and San- 

 tonin belong? Glucosides. 



To what class do Quinine and Morphine belong? 

 Alkaloids. 



What nomenclature has been adopted for Alka- 

 loids? The last syllable should terminate in ine\ 

 the Latin termination in ina\ the names of neutral 

 principles and glucosides end in in. 



What is meant by the Habitat of a plant? The 

 locality in which it grows in a wild state. , 



What Aloes is officinal? Aloe, or Socotrin Aloes. 



What is the strength of solution of Morphine of the 



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