| Show fogless glass scientists who have been trying to find a way of preventing the fogged glass which often obscures the vision of a chauffeur or motorman in rainy weather and results in accidents have decided that glycerin properly used Is the best thin thing for preventing mist forming on the glass it has long been used bior tor this purpose by locomotive engineers arid and a thorough test of its ef efficacy fleacy proved that it Is deserving of wider use to make glass fogless in any kind igind of weather it should first be thoroughly cleaned arid and then rubbed with a cloth wet with glycerin when the drops of water strike a glass coated in tills way coalesce forming a smooth transparent film which is no obstruction to vision the uncoated glass becomes covered with separate drops which completely befog its surface |