200 square feet, being supported in position by flanges near the bottom and No. 21 wire gage, 280 lbs. at 6c., $16 80 ; mason’s and carpen- projections at the top. The lower one, D, has ears, E, to ter’s time, five hours each, $4 75 ; total cost for square 10x10 which is pivoted a bail or handle,… … upon evaporation. the basis of my first experiment, seen in Fig. 1. Other expe- 2. Common salt is not only found in most springs and riv- riments have been made, as shown by the remaining figures.” ers, but even in rain water, many miles inland, when the ponding hole in the springs, G, secured to…
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