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June 1940

SEALING SPECIMENS OF THE BRAIN WITH PLIOFILM: A Practical and Inexpensive Way to Exhibit Specimens

Arch NeurPsych. 1940;43(6):1205-1207. doi:10.1001/archneurpsyc.1940.02280060150010

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Pliofilm can be used to cover preserved gross specimens of the brain. The accompanying photographs show that an entire brain or any part of it can be so sealed. Such a method permits many persons to examine the object freely, without hardening the hands or fear of damage to the brain. By keeping the specimen in a cool place it can be used for months. Such a method of enclosing specimens is especially suitable for study or teaching purposes. Samples can be slipped into a pocket or handbag and easily taken anywhere without fear of injuring adjacent material.

My experience has been only with brains which have been in a 10 per cent concentration of solution of formaldehyde U. S. P. for at least four weeks. The spinal cord does not appear well when sealed by this method because of its length and the concealment of cross sections. Specimens of