. The American florist : a weekly journal for the trade. Floriculture; Florists. 146 The American Florist. Aug. 14, ^ Market Gardeners Greenhouse Vegetable Growers and Market Gardeners* Association. E. A. Dunbar, Ashlabula. O., President; S. J. Perry. Grand Rapids, Mich., Vice-Pres- ident: , Cleveland. O., Treas- urer: S. W. Severance, 508 Illinois Life Building, Louisville. Ky., Secretary. Next meetine in Ashtabula. O,. October 12, 1909. Tomato plants north of Chicago are suffering from drought. Heating Notes. No doubt many changes in piping vs^ill again be made this fall, and a fe


. The American florist : a weekly journal for the trade. Floriculture; Florists. 146 The American Florist. Aug. 14, ^ Market Gardeners Greenhouse Vegetable Growers and Market Gardeners* Association. E. A. Dunbar, Ashlabula. O., President; S. J. Perry. Grand Rapids, Mich., Vice-Pres- ident: , Cleveland. O., Treas- urer: S. W. Severance, 508 Illinois Life Building, Louisville. Ky., Secretary. Next meetine in Ashtabula. O,. October 12, 1909. Tomato plants north of Chicago are suffering from drought. Heating Notes. No doubt many changes in piping vs^ill again be made this fall, and a few notes may help. This is a most dif- ficult subject and all we hope to ac- complish is to cause the reader to think more before putting up a job. In the first place, the effectiveness of any heating pipe depends entirely upon the amount of air that can get to and away from the pipe, by which is meant circulation; thus a pipe laid flat on the ground or nailed to a wall is not as effective as one suspended in air. Nor is a pipe in a coil as effective as one alone. If we could put up a board on each side of pipes, thus compelling the heated air to pass upwards only, and the cool air to come in from below, we would also increase efficiency, because we would speed up circulation. -These matters can be proved by piping short span houses entirely under the gut- ters, this being a very desirable point to start air circulation. It is safe to say a given number of pipes will do more work there than if put under benches. We do not like to put all pipes under benches, as in severe weather this is too hard on the growing crops. Fur- ther we do not like to run pipes singly under benches, that is, to turn on one, two or three, as such a system means uneven drying out, which entails end- less work in watering. It is better to have some overhead pipes in severe weather,_ and those under benches to work in batteries, thus to heat one bench uniformly, or not at all. Another point for study is th


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea