Canadian Jewellers Association · Toronto : Maclean-Hunter Pub. Co · leaf 330
iamonds allow passage of Roentgen raysbetter than the so-called colored diamonds. This showsthat the refraction is caused by an inorganic substance,a metallic oxide in diamonds. In a large number of diamonds the pigment (coloringmatter) is present only as a thin surface or outer layer,especially… … ISNT IT CHILLY?An unusually appropriate piece of designing Is this famousCurling Trophy, the Ontario Tankard, for which Ontario curlershave competed for the past forty-five years. It is r\ovj held bythe Collingwood Club, which won from Napanee in the final thisyear. The cup was designed by Savage,…
Jewelry · Jewelry trade
Internet Archive · Thomas Fisher Rare Book Library · Public Domain Mark 1.0. Free to use for anything.
