Tht hardest of all ivory is obtained from the hippopotamus. This will emit sparks like a piece of flint when struck with steel. It is used principally (or making artificial teeth.
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Bibliographic details
Northland Age, Volume 3, Issue 20, 18 December 1906, Page 2
Word Count
31Page 2 Advertisements Column 2 Northland Age, Volume 3, Issue 20, 18 December 1906, Page 2
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