Patent for a new and improved Photographic Printing Machine. The device allows for accurately positioning negative to contact accurately with printing paper.
Patent for pulverizer that reduces solid or liquid fuel while simultaneously mixing the finely divided material with an oxidizing agent and holding the mixture in suspension, producing a highly combustible mechanical mixture for use in furnaces, gas producers, and other similar apparatus that is more desireable to use finely divided fuel.
Soil survey of 13 counties lying south and west of San Antonio. Included are Bexar, Medina, Uvalde, Kinney, Maverick, Zavalla, Frio, Atascosa, Wilson, Live Oak, McMullen, Lasalle, and Dimmit counties. Text describes the area, climate, agriculture, soils, irrigation, and alkali of these counties.
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