Activities/Plaster of Paris Casts and Mounts

Plaster of Paris Casts and Mounts

Casts may be made of animal tracks ( 170), leaves, ferns, flowers, twigs, seeds, rocks or shells. For collections, if it is desired to mount more than one specimen on one cast, all specimens must be on hand when the mold is made, for plaster hardens fast and cannot be remolded.
To make casts, roll out on paper some “five-and-ten” Plas-
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For complete instructions, write to National Audubon So-ciety (address 4) for The Terrarium, 15~.