Democratic Sentinel, Volume 17, Number 28, Rensselaer, Jasper County, 4 August 1893 — Glass Doors. [ARTICLE]

Glass Doors.

It has remained for a woman to invent and patent glass doors for ovens. The wonder is that the idea has not long ago been thought of by - some woman who cooks. All cooking instructors lay the greatest stress on the care to be observed in opening an oven door to watch the progress of cakes or muffins. AT a recent meeting of the British Royal Society one of the members exhibited some curious photographs produced by placing coins or medals upon a sensitized plate. An electrical current was turned through the object and a developer applied to the film, when perfect images of the objeets were obtained.