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AN ADAPTION OF A STANDARD BI-METALLIC THERMO-REGULATOR TO CONTROL VARIABLE TEMPERATURES

Published online by Cambridge University Press:  31 May 2012

Geo. Wishart
Geo. Wishart
Affiliation:
Dominion Parasite Laboratory, Belleville, Ontario
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Extract

In entomological investigations it is frequently desirable to use varying temperatures rather than constant temperatures. The apparatus herein described, when installed in a rearing or storage chamber, makes it possible to control temperatures in any desired graph pattern over a period of twenty-four hours, and to repeat the same pattern any desired number of times. This is accomplished by removing the usual adjusting mechanism from a DeKhotinsky-thermo-regulator and substituting for it an automatic adjuster operated by a synchronous electric clock.

Type
Articles
Information
The Canadian Entomologist , Volume 72 , Issue 4 , April 1940 , pp. 78 - 81
Copyright
Copyright © Entomological Society of Canada 1940

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References

* A very excellent device for reproducing temperatures over a week was described by W. E. Stone; “An Instrument for the Reproduction, Regulation and Control of Variable Temperatures”, Jour. Wash. Acad. Sci., Oct., 1939.

** Permission by courtesy of the Central Scientific Company of Canada, Ltd., Toronto, Ont.