1. McNaught later became president of the American Watch Glass Company of Toronto. 2. In reference to this, large watch glasses are occasionally known as clock glasses. 3. Currently some watch companies are improving the crystal watch glass by testing the strength using the Vickers hardness test. 4. Some manufactures are promoting that they have watch glass at 6000 Vickers compared to other watches rating at 700. 5. Watch glasses are named so because they are similar to the glass used for the front of old-fashioned pocket watches.6. Alternatively, a beaker may be covered with another larger beaker that has been inverted, though a watch glass is preferable. 7. Windsor visitors can also watch glass blowers, potters, and other artisans at work in the innovative See It Made industrial park. 8. Shallow glass evaporating dishes are commonly termed " watch glasses ", since they resemble the front window of a pocket watch. 9. Not only can a watch glass be used for observing precipitation patterns and crystals, it can also be used for drying solids. 10. He was adopted by his aunt, the wife of a silversmith, and started his working life as a hawker of watch glasses .
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