Hill′o-type.
（Photography.) A process invented by L. L. Hill, of Westkill, New York, and much debated in the photographic journals of twenty years ago and since. He claimed — See “photographic Art-Journal,” October, 1852--to have discovered “a method of heliotyping the colors of objects truthfully, brilliantly, and imperishably.” The correspondence is voluminous, some of it acrimonious; the colors certified to have been produced heliotypically in the pictures are rosy, red, blue, green, orange, violet, buff. The process is not explained in these articles. Niepce worked long at this object, and called the products heliochromes. And yet we wait.
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| Side-hill plow. |
