Issue 18 and Volume 36.

PROTECT YOUR METER FROM FROST. The Clark meter box, illustrated herewith, absolutely protects the meter from frost. The heavy cast iron lid is covered with six inches of earth or pavement, leaving only an eight-inch cover exposed to view. Through the eight-inch opening readings are easily taken, and the meter may be placed and removed without digging up the box. The lid of the eight-inch opening is practically airtight, and, with the earth covering of eight inches over the top of the box, there is no clanger from the frost reaching the meter. No inner lid or protection of any kind inside of the box is required, and the meter may be raised up in the box to a convenient height for reading, even in the coldest climates. The warm air from the earth at the bottom rises up in the box and surrounds the meter. Tests made with this…

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