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Description

Article written by Cal R. Fremling detailing step-by-step instructions for a basic classroom laboratory experiment. The article includes photographs of students performing steps of the procedure, discussion of data and possible conclusions, and other possible applications using the materials and procedure. Fremling is credited as: "Winona State College, Winona, Minnesota." Abstract: "A novel experiment in aquatic biology employing polyethylene bags can be utilized by large groups. The author is Professor of Biology at Winona." Article reprinted from The American Biology Teacher, volume 30, number 6, September 1968. Part of the Cal R. Fremling Collection.

Publication Date

1968

Publisher

Library

City

Winona, Minnesota

Keywords

Biologist; s Laboratory; Fish; Pollution

Department

Special Collections-Library

Notes

1968-09-01

Rights Management

Requests to reproduce this image must be granted by the Winona County Historical Society.

Contributing Institution

Winona County History Center-Armory Museum

Unique Identifier

2011.003.0120

An experiment in diffusion, water pollution, and bioassay using polyethylene film as a semipermeable membrane

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