61 



of the prescribed menstruum to render it evenly and distinctly 

 damp and to maintain it so after maceration for six hours in a 

 tightly-covered container. Then pack it in a cylindrical perco- 

 lator and add enough menstruum to saturate the powder and leave 

 a stratum above it. When the liquid begins to drop from the per- 

 colator, close the lower orifice, and, having closely covered the per- 

 colator, macerate for forty-eight hours and then allow the percola- 

 tion to proceed slowly, gradually adding more menstruum. Ee- 

 serve the first two hundred mils of the percolate and continue the 

 process until the additional percolate measures fifteen hundred 

 mils, the latter being collected in siiccessive portions of three hun- 

 dred mils each. 



Moisten the second portion of the powdered drug (300 Gm.) 

 with a sufficient quantity of the percolate collected in the pre- 

 ceding operation immediately after the reserved portion, to render 

 it evenly and distinctly damp and to maintain it so after macerat- 

 ing for six hours in a tightly-covered container. Then pack it in 

 a cylindrical percolator and macerate and percolate as directed for 

 the first part of the drug, using as menstruum the several portions 

 of percolate from the preceding operation in the order in which 

 they have been collected, and, if this be insuf&cieru. follow with 

 some of the original menstruum. Reserve the first three hundred 

 mils of percolate and continue the process until the additional perco- 

 late measures eight hundred mils, collecting the weaker percolate 

 in successive portions of two hundred mils each. 



Moisten the third portion of the powdered drug (200 Gm.) 

 with a sufiicient quantity of the percolate collected in the preced- 

 ing operation immediately after the reserved portion, to render it 

 evenly and distinctly damp and to maintain it so after macerating 

 for six hours in a tightly-covered container. Then pack it in a 

 cylindrical percolator and macerate and percolate as before, using 

 as menstruum the several portions of the percolate from the preced- 

 ing operation in the order in which they have been collected, and, 

 if this be insufficient, follow with more of the original menstruum. 

 Collect five hundred mils of percolate and mix this with the two 

 portions previously reserved so as to make one thousand mils of 

 finished fluidextract. 



