. Annual report of the North Carolina Agricultural Experiment Station. allyhigh percentage of acid found in the fresh milk used in these ex-periments. A CHEAP AND EFFECTIVE ICE BOX. Cold storage of some kind is indispensable to a well equippeddairy. Many, however, lack this essential, and probably largelyowing to the high cost of commercial refrigerators. The construc-tion of the ice box detailed below is the result of an attempt to givedairymen a serviceable cold storage at as low a cost as possible. HANDLING AND MARKETING OF MILK AND CREAM. 13 The construction of this box, shown in Fig. 6, c
. Annual report of the North Carolina Agricultural Experiment Station. allyhigh percentage of acid found in the fresh milk used in these ex-periments. A CHEAP AND EFFECTIVE ICE BOX. Cold storage of some kind is indispensable to a well equippeddairy. Many, however, lack this essential, and probably largelyowing to the high cost of commercial refrigerators. The construc-tion of the ice box detailed below is the result of an attempt to givedairymen a serviceable cold storage at as low a cost as possible. HANDLING AND MARKETING OF MILK AND CREAM. 13 The construction of this box, shown in Fig. 6, consists essen-tially of two boxes separated by 1-inch strips placed at intervals ofabout one foot. Double thickness of building paper is placed onboth sides of the strips and tacked to the boxes. A 1-inch strip, twoinches wide, covers the upper space between the 1-inch strips, thusmaking a dead-air space between the two boxes. The constructionof the cover is the same as that of the bottom, with the exception thatthere is a flange at the front and sides of the |r&SBoARDS. V^JTFIPSPaper Fig. 6—Cross-section through Ice Box. The sides, bottom and cover of the refrigerator are built of f-inchtongued and grooved lumber, five and a half inches wide. Theends are constructed of 1-J-inch tongued and grooved flooring threeand a half inches wide. The inside of the ice box is lined with gal-vanized iron. To insure tightness, a layer of felt is tacked around 14 N. C. AGKICULTURAL EXPERIMENT STATION. the box and cover where the two meet. The four vertical edges ofthe refrigerator are tightened and strengthened by tacking oyer eacha double layer of paper, which is covered with two 6-inch boards. A heavy weight attached to a J-inch rope, running over a pulleyfastened to the ceiling, raises the cover and holds it open when de-sired. A short piece of rope with a hook attached is used to counter-balance the weight by hooking to the side of the box, thus allowingthe full weight of the co
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