PARK AND CEMETERY. 
299 
from small orange or brown cushions at 
the surface of the canker. New infec- 
tions may arise from a number of 
causes. Spores which are washed down 
the trunk of the tree may lodge in a 
wound and, if conditions are favorable, 
germinate and give rise to a new canker. 
Swan Point Cemetery, Providence, has 
developed some very interesting and 
characteristic effects in boulder work, in- 
cluding a boulder wall and other fine 
pieces of rustic construction. 
One of the most interesting of these 
is the boulder shelter house illustrated 
here. The walls are of old farm wall 
stones and the floor is of crushed stone 
with the stone dust surface one step 
above the grade. The timbers of the 
roof are of chestnut, planed and finished 
to show the grain. The planking of the 
roof is of yellow pine finished in the 
same way and covered with creosote 
treated shingles. The roof is anchored 
at the four corners by iron bolts extend- 
ing from the foundation. 
The trellis, just below, yet on all sides, 
is of natural cedar poles, all of which 
may be seen fairly well in the picture. 
The seats are of stained spruce; in 
fact, all of the interior is stained or 
oiled to show the grain of the wood. 
There is also a drinking fountain in the 
center of the floor. 
Spores are also transported from one 
tree to another by such agencies as the 
wind, birds, and insects. The shipment 
of diseased nursery stock, or of un- 
peeled, diseased logs, or of diseased bark 
to tanneries, is also responsible for the 
origin of new centers of infection, which 
The foundation and walls of the build- 
ing were built by cemetery employees 
are frequently at considerable distances 
from the main area of the disease. 
The display of chestnut blight mate- 
rial, obtained from Pennsylvania, shows 
some of the more characteristic aspects 
of the disease, particularly various stages 
in its development. 
SHELTER HOUSE 
and the approximate cost of the whole 
work is about $2, (XX). 
H'-ioV 6'- 6'- - - - - - I O'- 8" - - - +-2 4 <b'-€>'' 
INTERESTING TYPE OF BOULDER 
BOULDER SHELTER HOUSE, SWAN POINT CEMETERY, PROVIDENCE, R. I. 
