Each pupil should provide sufficient denim, percale, huckaback, or other
washable material to cover the two sides of a holder 7 inches square,
and enough outing or canton flannel for a double lining. About 1-1/2
yards of straight tape one-half inch wide will be needed for the binding
and for suspending the holder from the apron.
[Illustration: _Fig._ 20.--The holder]