ipi8 



BETTER FRUIT 



Page 25 



vided there were no prolonged periods 

 of warm weather. But prolonged warm 

 periods do occur and they make the 

 application of some form of insulation 

 necessary. 



One of the best insulating materials 

 available is dead air (still air). The 

 only way in which we can maintain a 

 dead air space within a wall is to con- 

 fine the air within minute areas between 

 bits of other material. Fortunately a 

 cheap and effective material is avail- 

 able, namely, mill shavings. In a paper 

 read before the American Warehouse- 

 men's Association a good many years 

 ago George H. Stoddard presented sec- 

 tional diagrams of walls insulated with 

 shavings, with hairfelt, with granulated 

 cork, and with alternate layers of % 

 inch spruce and % inch air space. His 

 diagrams were the result of tests which 

 he had made on sections of walls built 

 of the above materials. He concluded 

 that an 8-inch layer of mill shavings is 

 the equivalent of 4;i„ inches of hair felt, 

 6% inches of granulated cork, or five 

 layers of T s-inch spruce separated by 

 %-inch air spaces. In a wall sixty feet 

 long and ten feet high the hair felt costs 

 •*.">3, the granulated cork costs $90, and 

 the spruce costs $95 (Yakima prices), 

 while the shavings cost only $10 plus 

 the cost of transportation. Insulating 

 material must be dry when applied and 

 it must be kept dry after it is put into a 

 wall, or it will lose its insulating value. 

 Shavings in walls can be kept dry by 

 lining the inside of the retaining wall 

 with odorless waterproof paper. Wher- 

 ever the workmen tear the paper, they 

 should replace the torn sheet with an 

 unbroken one, or patch the hole so that 

 air cannot enter. The paper should be 

 lapped at all joints so as to thoroughly 

 exclude outside air. 



There is some tendency for apples to 

 shrivel in air-cooled storage, the ser- 

 iousness of the shriveling varying with 

 the variety of apple, the temperature 

 maintained, the operation of the venti- 

 lators and the provisions that have 

 been made for humidifying the atmos- 

 phere. Shriveled apples are not attrac- 

 tive, their selling value is greatly depre- 

 ciated, and they are tough and poor of 

 quality. I have often noted that apples 

 in warm storage houses were more 

 shriveled than those in cool storage 

 houses. I think this condition was due 

 chiefly to the fact that the warmer stor- 

 age houses were those which had been 

 ventilated in the daytime when the 

 humidity of the atmosphere was rela- 

 tively low. In our inland valleys the 

 atmosphere becomes very dry in the 

 daytime, and it picks up moisture very 

 rapidly from all surfaces with which it 

 comes in contact. 



Reliable and accurate data are not 

 available to indicate the exact percent- 

 age of humidity desirable. Cold storage 

 houses often have a relative atmos- 

 pheric humidity of N.">% to 90%. Air- 

 routed storage houses have at least 80%. 

 Al present I can recommend no method 

 which will maintain that amount of 

 moisture during the fall of the year. 

 Proper operation of the ventilators, 

 sprinkling, and the use of mechanical 

 humidifiers will help. 



The House of Rex 



The Institution in Spray Manufacturing 



Founded Upon Quality and 



Developed by Experience 



The Right Articles 



The Right Service 



The Right Price 



Write your nearest "REX" Company for prices and service. 



Remember, from them you can obtain a 



" 'REX' FOR EVERY ILL." 



Yakima Rex Spray Company, Yakima, Wash. 

 Wenatchee Rex Spray Company, Wenatchee, Wash. 

 Payette Valley Rex Spray Company, Ltd., Payette, Idaho 



COMFORT 



Cook in a cool, comfortable kitchen this sum- 

 mer. An oil cook stove is comparatively inex- 

 pensive to buy and it will soon pay for itself 

 in comfort and lower fuel expense. Meals in a 

 jiffy, and a cool kitchen in summer. 

 Bakes, broils, roasts, toasts. Better cooking be- 

 cause of the steady, evenly-distributed heat. 

 More convenient than a wood or coal stove for all 

 the year 'round cooking, and more economical. 

 The long blue chimneys prevent all smoke and smell. 

 In 1, 2, 3 and 4 burner sizes, with 

 or without ovens. Also cabinet 

 models. Ask your dealer today. 



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STANDARD OIL COMPANY 



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\'. Ill X WRITING ADVERTISERS MENTION BETTER FRUIT 



