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Biographical notices of mineralogists recently deceased. (Fifth series.)1

Published online by Cambridge University Press:  14 March 2018

L. J. Spencer
L. J. Spencer*
Affiliation:
British Museum
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Extract

In the following list of 41 lives, with a range in ages from 45 to 94 years, the average age is 70.7 years. Including previous lists, the average of 424 lives is 65.4 years. As shown in the following table there has been a gradual increase in this average during past years.

Type
Research Article
Information
Mineralogical magazine and journal of the Mineralogical Society , Volume 23 , Issue 141 , June 1933 , pp. 337 - 366
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1933

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Footnotes

1

Series I-IV in Min. Mag., 1921-30, vols. 19-22. An index to earlier notices in vols. 1-18 is given in vol. 19, pp. 259-262. A mortality curve is given in vol. 20, p. 253.

References

1 Series I-IV in Min. Mag., 1921-30, vols. 19-22. An index to earlier notices in vols. 1-18 is given in vol. 19, pp. 259-262. A mortality curve is given in vol. 20, p. 253.