February 2, 2007
A 1908 ad for “The Smith Great Western Endless Apron Manure Spreader” refers to United States Bulletin No 192 stating the per annum value of manure produced on U.S farms to be $2,352,700. (that’s 2.35 billion) and asserts that manure, properly applied, can produce a gain of $4. to $8. per acre over poorly applied manure.
