IZ 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— 
g. 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. 
1o. Last season, I used 8% tons of Hocking Valley 
lump coal per 1,000 sq. ft. of glass for roses, and 6% tons 
for carnations and violets mixed. I use steam. 
If a man is not bothered by visitors he can care for 
two rose houses 20x 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. Ina 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. 
