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A simplification of the Rosiwal method of micrometric analysis

Published online by Cambridge University Press:  14 March 2018

W. Alfred Richardson
W. Alfred Richardson*
Affiliation:
University College, Nottingham
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Extract

Johannsen has recently described an areal method of micrometric analysis, based on the use of a planimeter in conjunction with a drawing apparatus. It is claimed that this method results in some increase of accuracy, a considerable saving in time, and—most important of all—eliminates all the eye-strain due to continuous reading of a micrometer.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 19 , Issue 97 , June 1922 , pp. 314 - 315
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1922

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References

Note

1 Johannsen, A., Journ. Geol. Chicago, 1919, vol. 27, pp. 276–285 CrossRefGoogle Scholar.