Commercial slides used some years ago at
Dartmouth College were rather ancient,
yellowed ones by Dr. F. Krantz. I was
surprised last year to discover the firm
is still selling thin sections for
teaching.
http://www.krantz-online.de/
Their website doesn't list sections
available. These are apparently listed
instead in their catalog of geological
teaching aids, which they will mail for
EU 5.00.
Bruce Bathurst
|