il. 
of building sap. This sweet material, paseing downward 
in the inner bark, stimulates and builds up only those 
parts that lie in the direct path between the leaves and 
the roots. Hence, it will be seen that the sap in de- 
scending from the branch at the left of figure 13, will 
flow along the slanting line, the wood above this line 
reosiving no nourishment, soon dies and decay begins. 
All fresh wounds should be sterilized with bichloride 
of mercury (1-1000), made by placing one tablet in each 
pint of water. After this is dry, all cuts should be 
covered with some good waterproofing. Pure lead paint, 
without turpentine, is usually recommended, but we have 
had excellent results from the use of the following mix- 
ture: Rosin 1 part 
Pine tar 1 part 
Boiled linseed o11 1 part. 
These should be heated together, using care to keep away 
from the flame, for the mixture burns readily. Also, 
it is dangerous to drop water into the hot mixture, for 
it causes a violent spattering and foaminz, that goon 
runs over the sides of the kettle and catches fire. 
When the mixture, tested in water, has the consistenoy 
of taffy, it is ready to apply to the cuts while warm. 
This coating leaves no opening for the entrance of water 
or insects, which carry spores of the fungi and cause de- 
Cay es 
