The cost of the above should be approximately as follows : —

Wages of man one year at $50 per month..........    $600.00

Extra glassware and breakage..............        10.00

125 gal. sulfuric acid at 55 cents gal.............        67.75

4 dozen sample bottles................        10.00

Record blanks...................        20.00 $715.25

Value of cow-testing associations in Virginia (Virginia Bulletin 190)