ADDENDUM 541 
in foliage a 1-40 to 1-50 solution. It is safer, however, to use the hy- 
drometer and make a more careful dilution. 
Self-boiled lime-sulfur (Scott’s). — This is not a water-boiled solution, 
as might be inferred from the name, but a mechanical mixture result- 
ing from the heating and bubbling of the slaking lime, with but little 
sulfur in solution; it is therefore specially adapted to spraying of 
peaches and plums in foliage, for it causes no injury. It is prepared 
by placing in a barrel 8 Ib. best stone lime to which is added a small 
quantity of cold water to start the slaking. Eight pounds of sulfur 
worked through a sieve to break up the lumps is then added slowly to 
the slaking lime, which is kept from burning by the addition of just 
enough cold water so as not to drown it. The slaking mixture must 
be stirred constantly. Just as soon as the slaking is completed (which 
should be in 5 to 15 minutes) fill the barrel with cold water (50 gal.). 
The mixture is strained into the sprayer tank through a sieve of 20 
meshes to the inch. It must be agitated constantly while being ap- 
plied, as it settles rapidly. Arsenate of lead may be added to this 
mixture, as to bordeaux. 
j 
Printed in the United States of America, 
