BOTTOM HEAT ITS BENEFITS AND METHC'DS. 31 



He draws water from the heating pipes, choosing a time when the 

 temperature is from fifteen to twent}' degrees above that of the 

 atmosphere. He had known beds worth hundreds of dollars spoiled 

 by the use of cold water. 



H. Weld Fuller spoke of a simple apparatus which he uses in the 

 greenhouse at Woodlawn Cemetery to take the chill from the water 

 in an elevated cistern. It consists of a coil of annealed copper 

 pipe, placed around the smoke funnel of a Hitchings boiler, out- 

 side and at its base, there connecting with a half-inch lead pipe 

 which leads down from the bottom of the tank, while the upper end 

 of the coil is connected with a lead pipe extending into the higher 

 portion of the water in the tank, and there by a movable coupling, 

 carrying the heated water to a float with a downward finger-vent 

 which is always under the surface and rises and falls with the water 

 in the cistern to keep up the greatest circulation, the principle being 

 the same as that which keeps up the hot water circulation in our 

 kitchen ranges. In this case, nine coils of half-inch pipe, rising 

 slightly at each turn, accomplished the heating perfectl}-, the whole 

 costing less than eight dollars. 



James Cruickshanks corroborated what Mr. Ilari'is had said. 

 He had been astonished where water was drawn directly from a 

 faucet, that plants should succeed as well as they do. He recom- 

 mended a tank of soapstone, in which the water will, in twelve 

 hours, acquire the temperature of the house. 



W. C. Strong said that while all would agree to the principle 

 laid down by Mr. Harris, there is a limit to its application. He 

 had visited a successful cultivator of roses, who cut a full ci'op at 

 Christmas and Easter, from plants the roots of which were in the 

 outside ground where they got all the rain. The case is the same 

 also with forced grapes. He believed that man}' plants are not as 

 sensitive as might be inferred from what had been said, but have 

 suflBcient constitution to endure showering with cool water and are 

 refreshed by it. He did not include among these, however, the 

 delicate plants cultivated by Mr. Harris, but the majority of plants 

 generally cultivated, for which he thought warm water unnecessary. 



Mr. Hovey asked if the borders for forced grape vines were not 

 generall}' covered, and referred to the production of three crops in 

 two years by M. H. Simpson, who covered his borders thickly 

 with wool waste, over which boards were placed to shed the rain. 

 The covering was put on in Jul}', when the temperature of the soil 

 was hio-hest. 



