. Citrus fruits; an account of the citrus fruit industry, with special reference to California requirements and practices and similar conditions . )()rti()n of radiated, and theless convectional lieat <:;iveii off by any heater thegreater its efficiency. Tliis important principle is oftenJSlli__-jM overlooked whUe con- sidernig ponits appar-ently more Indians of Peruare said to have usedfor centuries, in pro-tecting their cropsfrom gravity springfrosts, a heavy claypot in which char-coal is burned. Bythis means they se-cured radiated heatalmost exclusively. From a considera-ti
. Citrus fruits; an account of the citrus fruit industry, with special reference to California requirements and practices and similar conditions . )()rti()n of radiated, and theless convectional lieat <:;iveii off by any heater thegreater its efficiency. Tliis important principle is oftenJSlli__-jM overlooked whUe con- sidernig ponits appar-ently more Indians of Peruare said to have usedfor centuries, in pro-tecting their cropsfrom gravity springfrosts, a heavy claypot in which char-coal is burned. Bythis means they se-cured radiated heatalmost exclusively. From a considera-tion of the above re-quirements it will beseen that the develop-ment of a thoroughlypractical and efficientoil heater is not aneasy matter. Four orfive of the require-.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectcitrusfruits, bookyea
