166 LABORATORY MANUAL OF AGRICULTURE 



matter. Weigh each group and record its weight and per 

 cent on the blank form in the column for that sample number. 

 Weigh accurately to one tenth of one gram. Quantities 

 less than one tenth of one gram may be indicated as " trace." 

 All the groups of the sample should total 100 per cent. 



Separate from the sample one hundred sound seeds and 

 make a germination test as described in Ex. 39. Record 

 the data of the germination test in Ex. 39. Record the per 

 cent of germination on the blank form. From the data 

 recorded on the blank form compute the per cent of the 

 sample that will grow and that is true to name. 



