New York AGRICULTURAL EXPERIMENT STATION. 427 
26 degrees Beaumné or 1.000 to 1.830 Specific Gravity are recom- 
mended. Hydrometers do not detect impurities in lime-sul- 
phur solutions; these can be determined only by chemical 
analysis, 

gi ve etal al be 
‘Hydrometers can be purchased from Bausch & Lomb Optical 
Co., Rochester, N. Y., Eimer and Amend, New York City, 
Whitall Tatum Co., New York City, and wholesale dealers in 
druggists’ supplies. <A convenient and useful outfit may be 
obtained from the Bausch & Lomb Co. This consists of two 
hydrometers, one to determine the density.of the concentrated 
solutions, preparatory to dilution, one to gauge the strength 
of the diluted mixture, and a glass jar, to contain the liquids 
for the tests. Fig. 11. By the use of the two instruments the 
divisions of the graduated scale are made larger, which enables 
the readings to be made with greater ease and accuracy. 
DIRECTIONS FOR DILUTING LIME-SULPHUR 
SOLUTIONS. 
BRANDS OF STANDARD STRENGTH, 
If the brand of concentrated lime-sulphur solution is of 
standard strength, the question of dilution is a simple matter. 
Such a preparation should be clear, free from sediment, and 
should test uniformly between 32 and 34 degrees Beaumé, 
