FRACTIONAL DISTILLATION Distillation where a 

 lighter liquid is to be separated from a heavier one. 



FILTRATION Separating liquids from solids by 

 passing the liquids through a filter. 



GRANULATION Obtaining a coarse powder by con- 

 stantly stirring a liquid containing a solid in solution 

 while the liquid is being evaporated. 



ISOMERIC An epithet applied to different bodies 

 which agree in composition but differ in properties. 



ISOMORPHOUS An epithet applied to different 

 bodies which have the same crystalline form. 



LEVIGATION Is reducing substances to a minute 

 powder by trituration after they have been made 

 into a paste with water. 



MACERATION Soaking the drug in a menstruum 

 to extract its virtues. 



PRECIPITATION Is separating solids from liquids 

 by heat, light or chemical reaction. 



PERCOLATION Passing a menstruum through a 

 powdered drug in a percolator. 



SOLUTION To dissolve in a liquid. 



SUBLIMATION Vaporizing and condensing a solid. 



TRITURATION Rubbing in a mortar. 



ABSTRACTA Abstracts. 



Are powdered preparations double the strength 

 of the drug or fluid extract. 



Give general formula. 



A concentrated fluid extract of the drug is mixed 

 with sugar of milk, evaporated to dryness and pow- 

 dered. 



Name the advantages possessed by this class of 

 preparations. 



i. "Each abstract represents twice the strength 



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