Chicago : Engineering and Contracting Pub. Co. · leaf 32
ace of the beds is uniformso that all parts of the area are in use. Thebeds rest from 2 to 4 minutes between suc-cessive sprayings. The writer spent an hour at these beds onone of the very hot days in May of this year.There was no objectionable odor from theplant, even when standing on the slag of… … Fig. 4—General View of Main Distributors, New Bed. sewage were tested chemically and about 700samples bacterially. The cost of operatingthe laboratory is about $200 per year, includ-ing chemicals, breakage, fuel, etc. Table I shows the monthly summary of re-sults for 1910. The figures given are…
Buildings
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