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Quarterly Journal of Microscopical Science, Vol s3-97, 313-317, Copyright © 1956 by Company of Biologists

A Simple Apparatus for Freezing-Drying Histological Specimens

H. KRAMER M.B., Ch.B., D.Phil.1 and R. G. HILL F.I.M.L.T1

1 Dept. of Experimental Pathology, John Curton School of Medical Research, Australian National University, Canberra, A.C.T Dr. Kramer's present address in special Unit for Investigation and treatment of cancer, prime of wales Hospital, Sydney, N.S.W., Australia

The construction and operation of a simple apparatus for freezing-drying histological specimens is described. The appartus, which is constructed from materials readily available in most laboratories, requires neither elaborate pumping equipment nor vapour traps, for the water molecules emanating from the specimens are carried away by a stream of dry gas. By this means specimens can be dried from a lower temperature in a time considerably shorter than is possible with the more complicated and costly freezing-drying apparatus usually used.






© The Company of Biologists Ltd 1956