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Incorporated, a worldwide network of science museums and related institutions.
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Dear resourceful listserv members,

Can someone send me a recipe for a plaster of paris/sand matrix to use 
in our investigation cart "fossil dig"? The previous education director 
developed this fun activity but did not leave the recipe for the matrix 
(at least in all the places I looked). At present our fossils have 
already been "dug" so we need to freshen up and re-bury our fossils.

Thanks,
Wendy

-- 
Wendy Derjue-Holzer
Assistant Director of School and Teacher Programs
Harvard Museum of Natural History
(617) 495-5782
www.hmnh.harvard.edu

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