Word: amalgamation
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Dates: during 1920-1929
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...themselves unpleasant, but they bring a sense of security, of satisfaction that time could not be better spent. Now comes the word from Germany that these visits are the causes of new misery. Some time ago, Professor Stock, famed Berlin chemist, published an article on the dangers of using amalgam* for fillings. One Professor His then decided to study the problem in his medical clinic. He took a group of workmen who had contact with mercury in their daily occupation, a group of patients whose only contact with mercury was the fillings of their teeth, a group of school dentists...
...That copper amalgam fillings, so often used in filling children's teeth, constitute the greatest source of danger, but silver and gold amalgams have also found their victims...
...Trent method the coal is finely ground, wet with water and then violently agitated while fuel oil is run in. The coal particles gather into globules the size of French peas, while the ash is suspended in the water and run off. The coal becomes a putty-like amalgam which is then shaped and baked in the form of small briquettes. The fuel oil is mostly recovered...