NUTRIENT GELATIN 



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next to the table on which we are folding. The paper is 

 now taken up and each space between the seams just pro- 

 duced is to be subdivided by a crease or fold through its 

 centre, as indicated by the dotted lines in Fig. 16, but with 



FIG. 16 



the creases on the side opposite to that occupied by creases 

 1, 2, 3, 4, etc., first made. As each of these folds is made 

 the paper is gradually brought into a wedge-shaped bundle 

 (Fig. 17, a}', which when opened assumes the form of a 



FIG. 17 



properly folded filter (seen in b, Fig. 17). Before placing 

 it upon the funnel it is well to go over each crease and see 

 that it is as closely folded as possible, care being taken not 

 to tear it. The advantage of the folded filter is that by its 



8 



