10 Farmers’ Bulletin 1285. 
container is provided with a valve at the bottom the concentrate can 
be readily drawn off without disturbing the oil. 
Storage temperature.—No special care in storage is necessary, 
except that it is well not to expose the concentrate to low temper- 
atures on account of the danger of freezing and consequent breaking 
of the containers. If the 
lime-sulphur is stored in 
buildings during the winter, 
it is not likely to freeze, 
since a solution testing 32° 
Baumé does not freeze until 
the temperature reaches 5° 
F. A solution of lesser den- 
sity will freeze at a higher 
temperature, while one of 
greater density has a still 
lower freezing point. 
Using old lime-sulphur.— 
Concentrated lime - sulphur 
is not impaired either by 
freezing or standing in stor- 
age except in so far as it 
may be converted into crusts 
or crystals as a result of 
leakage or undue exposure 
to the air. (See footnote 
on p. 9.) 
DILUTING FOR SPRAYING 
PURPOSES. 
Hydrometer outfit.— A 
hydrometer outfit (Fig. 2) 
consists of a hydrometer 
and a tall glass cylinder in 
which the liquid may be 
tested. Such an outfit is 
not expensive and may be 
purchased from dealers in 
chemical supples, labora- 
tory apparatus, or orchard 
supplies. For the testing 
of lime-sulphur concentrate 
a the instrument should be 
aah. : Char Srayea 
Tic. 2.—Hydrometer outfit for determining spe- uitable for testing liquids 
cific gravity of lime-sulphur concentrate: a, heavier than water. The 
Cylinder for liquid to be tested; b, specific grav- . shaw sa p 
ity spindle; ¢, Baumé spindle. (Quaintance hydrometer consists of a 
and Siegler.) glass spindle weighted at 
the lower end. The upper 
part of the instrument is provided with a graduated scale on which 
the density of the solution is indicated. Some instruments are 
. wits ‘eR ° cd 7 
equipped with the specific gravity scale, others have the Baumé scaie, 
und some have both scales. In testing use only the clear liquid which, 
preferably, should be at a temperature of about 60° F. After the 
density of the concentrate is known, the proper rate of dilution for 
Poi 
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