. Citrus fruits;. Citrus fruit industry; Citrus fruit industry. 256 Citrus Fruits The greater the proportion of radiated, and the less convectional heat given off by any heater the greater its efficiency. This important principle is often BJOTI rM overlooked while con- sidenng points appar- ently more practical. The Indians of Peru are said to have used for centuries, in pro- tecting their crops from "gravity" spring frosts, a heavy clay pot in which char- coal is burned. By this means they se- cured radiated heat almost exclusively. From a considera- tion of the above re- quirements
. Citrus fruits;. Citrus fruit industry; Citrus fruit industry. 256 Citrus Fruits The greater the proportion of radiated, and the less convectional heat given off by any heater the greater its efficiency. This important principle is often BJOTI rM overlooked while con- sidenng points appar- ently more practical. The Indians of Peru are said to have used for centuries, in pro- tecting their crops from "gravity" spring frosts, a heavy clay pot in which char- coal is burned. By this means they se- cured radiated heat almost exclusively. From a considera- tion of the above re- quirements it will be seen that the develop- ment of a thoroughly practical and efficient oil heater is not an easy matter. Four or five of the require- ments may be combined without much difficulty, but some are more or less conflicting. It is especially diffi- cult to combine perfect combustion and control of combustion with simplicity and Fig. 84. — Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Coit, John Eliot, 1880- [from old catalog]. New York, The Macmillan company
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
