STUDY OF SEEDS 
17 
Later storing in insect-proof boxes or barrels, will prevent 
losses by vermin. 
Heads of small grain may also be bound in bundles as 
shown in Figure 6, and preserved for future study. 
Figures 7 and 8 illustrate methods of preparing cotton 
and peanuts for school study. 
Fig. 12.—Seeds mounted in bottles. 
Destroying ^Afeevils or Grain Moths.—Before put¬ 
ting the seeds away for any length of time, it is a good 
plan to treat them to destroy weevils or moths. Carbon 
disulphide in a tight box, barrel, or room for two days 
will destroy any insects that may be upon the seed. The 
disulphide should be placed in shallow dishes or pans on 
top of the seed. One-half pint will treat ten bushels of 
seed and is net expensive. After the grain has been 
