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0VTEHBBH 26, 1912. 



The Florists^ Review 



93 



i/BUILT FOR BEGINNERS 



■ Wilk9 Boilers are ideal for the man who owns a small 

 greenhouse, who does his own firing and needs a boiler 

 that can be relied on at all times. ;* 



Wilks Boilers are self-feeding. Fill the magazine with 

 fuel in the evening and an even, continuous fire will be 

 maintained until morning without any attention. 



Wilks Self-feeding Hot Water Boileis 



are built entirely of steel. Read what this user says about 



their lasting qualities : 



R. D. No. 7, Rockford, 111., Jan. 7, 1910. 

 S. Wilks Mfg. Co.: 

 ■ . ' We are usiqg one of your 20x36 Wilks Heaters in a 



20 X 50-foot greenhouse, and it is giving excellent satisfac- 

 . , tion. Has been in constant use since 1883 and seems to 



' ■ , be as good as new. Yours truly, 



D. E. Burdick. 



Wlllcs Boilers will heat as much as 3000 eq. ft. of glass 

 to 65^ in zero weather. Write for Catalogue 



S. WILKS NFG. CO., 3S23 SUelds Ave., CHICAGO, ILL. 



MontlAn Th» R»t1pw wh»n von writ* 



Full Weight ''Reading*' 



Wrought Iron Pipe 



Sizes H-in. to 12-ia. from stock 



FORD & KENDIQ CO. 



24th and Wood Sts., I'hiladelphia, Pa. 



Mention The Review when Ton writ* 



Med. With steam heat one 2-inch flow 

 and six 1 14 -inch returns would answer. 

 The lean-to would require one 2i^-inch 

 flow and three 2-inch returns for hot 

 water, or one 1^-inch flow and two 

 1%-inch returns for steam. 



HEATINQ A HOTBED. 

 I would like to get some information 

 in regard to the construction of a pipe- 

 heated hotbed for propagating sweet 

 potato plants in Louisiana. Would you 

 '■ecommend laying the pipe in direct 

 contact with the soil about twelve or 

 fourteen inches below the surface, or do 

 you think it best to build a flooring 

 inder the bed and lay the pipes in an 

 excavation under the floor? It occurs 

 to me that laying the pipes in direct 

 contact with the soil, as mentioned 

 above, is best if a suflSeient and uniform 

 heat can be maintained. J. L. D. 



The letter does not say whether hot 

 *ir, hot water or steam is to be used for 

 heating the hotbeds, but so far as 

 running the pipes is concerned, it would 

 ^e best to sink them in the soil about 

 twelve inches. This will give better 

 I'e.sults than to have them in an exca- 

 yation. For a 6-foot frame use two iVi- 

 'nch steam pipes, three 2-inch hot water 

 pipes, or two 5-inch hot air pipes. 



There Is a Splendid Chapter on 



Greenhouse Heating 



In The Florists' Manual 



By WILLIAM SCOTT 



A complete reference book for commercial florists. 253 large pages, 

 fally illustrated. Treats on over 200 subjects concerning greenhouse build- 

 ing, heating, management, and plant culture. It tells yon just what yoa 

 want to know, in just the way you want to be told. 



Seoond Edition, Price $6.00, Prepaid hj Stress ot MmXL 



FLORISTS' PUBLISHING CO. 



508 S. Dearborn St. CHICAGO 



PEPINO A LETTUCE HOUSE. 



Please advise how to pipe our new 

 house, 18x100, for lettuce where the 

 temperature falls to 20 degrees below 

 zero, using 2-inch pipe. The house is 

 protected on the east side by a carna- 

 tion house, connected. How many re- 

 turns to each 2-inch flow? The new 

 house will have the benches arranged as 

 follows: On the east side one raised 

 bench thirty inches wide; then a walk 

 twenty inches wide; then another solid 

 bed seven feet wide; then a walk thirty 

 inches wide and then a solid bed four 



feet wide. The partition between the 

 carnation house and the new house has 

 three feet of glass. The other side has 

 two feet of glass. This is a Moninger 

 %-span house about twelve feet to the 

 ridge, with one purlin about the center 

 •f bars, heated by a Kroeschell No. 3 

 boiler. W. F. C. 



For the growing of heading varieties 

 of lettuce it will answer if one 2%-inch 

 flow and three 2-inch returns are used 

 on each side of the house. The flows 

 can be on the plates, and the returns 

 can be under the bench on one side, 



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