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A Method of Adapting a Microscope for Observation of Non-Motile Insects on Tree Trunks1,2

Published online by Cambridge University Press:  31 May 2012

R. C. Clark  and
N. R. Brown
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Extract

Field studies on adelgids and other small non-motile insects living on the bark of trees are often hampered by insufficient magnification and poor light when a hand lens is used. We have tested various commercial illuminated magnifiers but have found that they are either of too low magnification or have too shallow a depth of field.

Type
Articles
Information
The Canadian Entomologist , Volume 92 , Issue 1 , January 1960 , pp. 79 - 80
Copyright
Copyright © Entomological Society of Canada 1960

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References

1 Contribution No. 580, Forest Biology Division, Research Branch, Department of Agriculture, Ottawa, Canada.

2 Part of a joint project of Forest Biology Division, Fredericton, N.B. and Department of Lands and Mines of New Brnnswick, financed in part by funds from the Provincial Department.