TULIPS. 
61 
the grafs, or foliage, will become of a 
yellowilh brown, and two or three inches 
of the top of the Item will wither, dry 
up, and become purplifh : this denotes 
the critical period to take up the roots, 
becaufe if done earlier, they will be 
weak and fpongy, and if deferred later, 
their juices will become grofs; this will 
be manifeft at the fucceeding bloom, 
by too great a redundance of colorific 
matter in the petals, and the flowers will 
be what is generally termed foul. 
When the roots are taken up, they 
are to be gradually dried, and placed in 
a fituation where they may remain fo: 
it will not be neceflary to do any thing 
» 
more to them till Auguft or September 
following ; at which time, it is proper to 
take off their loofe fkins, fibres, and fuch 
offsets as are eafily feparated ; obferving 
not to leave the roots too bare, becaufe 
the 
