I2 INTRODUCTORY SUGGESTIONS. 



In a nest or block of several houses, the heating could 

 probably be done with 20 tons. 



In rose-forcing, a careful and industrious man can take 

 care of about 10,000 sq. ft. of glass. With a smart boy 

 for weeding and cleaning up, he could handle 5,000 ft. 

 more. 



7. To keep an average temperature of 60, for roses, by 

 steam, would require about 18 tons of hard coal. Much 

 will depend upon the boiler, the placing of the radiating 

 surface, and the carefulness of the fireman. 



With things conveniently arranged, one smart man 

 could care for a rose house 20 ft. wide and 250 to 300 ft. 

 long. 



8. I grow violets, and heat with water. I use 60 to 70 

 tons of hard coal for 15,000 sq. ft. of glass. 



MICHIGAN 



9. With coal at $2.75 per ton, and including fireman's 

 wages, it will cost anywhere from $75 to $125 per year, 

 depending upon the efficiency of the boiler and the sever- 

 ity of the season. 



Much depends upon the handiness of the place, and how 

 neat the proprietor wants to keep his house. For the 

 most thorough care, one man can manage, of roses, 5,000 

 to 6,000 sq. ft. of glass. 



10. Last season, I used 8)4 tons of Hocking Valley 

 lump coal per 1,000 sq. ft. of glass for roses, and 6)4 tons 

 for carnations and violets mixed. I use steam. 



If a man is not bothered by visitors he can care for 

 two rose houses 20 x 125 ft. If this amount of glass were 

 in four houses, he could not care for it well. 



11. If built in a range of say ten houses, heated with 

 steam, it would require for each house about 18 tons of 

 soft (lump) coal. In a smaller range, the heating would 

 cost more. 



One good man can care for two such houses ; or if 

 help is furnished occasionally and no propagating is 

 done, more glass can be cared for. 



