* 
THE CONSTRUCTION OF THE FORCING-HOUSE., 
shed house 60 feet wide and 300 feet lone. 
Si 
long), which are-slare> 
enough to make and control 
their own temperature and 
to employ all the time of a . 
man, it is probably better, 
for the sake of the conve- 
nience of hauling to and from 
them and the ease of repair- - 
ing the roofs, to have them 
separated from other houses 
by a space two or three rods, 
or more, wide. 
It is probably true that 
the best direction or expos- 
ure for an even-span house 
is from north to south, be- 
cause both sides of the struc- 
ture then receive an vequal 
amount of sunlight during 
the twenty-four hours. It is 
not always practicable, how- 
ever, to run the houses north 
and south, and when it is 
not, it is better to run them 
directly east and west, and 
to break the roof into un- 
evenspans. Just which span 
should face the south, whether 
the long one or the short 
one, is a matter of dispute. 
It probably depends very 
largely upon the kind of 
plants to be grown, and 
the slope of the land, and 
upon the exact exposure ; 
but it is, no doubt, true that, 
for general conditions, the 
