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Originally Posted by A. G. Maisey
Jean, I think you are naming "Webster" as the source for identification of hippo ivory by presence of a dotted line?
Who is Webster, how reliable is his work, when was it produced? Is there verification?
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Hello Alan,
The results from Webster (Robert) are referenced in the article from Richard V. Dietrich (Central Michigan University) which I listed in post #48.
I have no access to Webster's paper but it is included in the Gems & Gemolology Subject Index compiled by R.V. Dietrich (CMU) and A.A. Levinson (University of Calgary) as follows:
"Ivory distinguished from bone, Winter 1948-49, Volume VI, pages 105-110" (if I understand it correctly).
Actually the results from Webster as referenced by R.V. Dietrich concern the measurement of the specific gravity and hardness of hippo ivory as compared to other types of ivory and bone.
His work is not referenced in the CITES article bibliography probably because it is too old...
Regards