SIDE-VENTILATION. 15 
being arranged on the top to carry off the water from the 
roofs on each side (see Fig. 5). Another plan sometimes 
adopted in con- 
structing a block 
of contiguous 
houses intended 
for one class of 
plant only is to 
carry the eaves 
of both houses 
on an extra stout 
and heavy, as well 
as wide ‘‘ plate ” 
(see pp. 51 and 
72), this being Fig. 4. 
supported merely by means of brick piers built a few feet 
apart, a gutter being fixed on top of the plate, as before. 
Of course, this leaves the 
houses open to each other 
beneath the eaves, and 
the plan is only permis- 
sible where the same 
temperature is to be 
maintained in all the 
houses thus connected. 
Where several roofs are 
thus constructed con- 
tiguously, the gutters 
between should be made 
wide enough for a man to walk along in them easily, 
for the purpose of repairing the glass, painting, etc. 
