Short biographies from the Agricultural Journalism Library, University of Wisconsin, Madison., Subjects include: Norman J. Coleman, Coleman's Rural World -- H.W. Collingwood, Rural New Yorker -- Pietro de Crescenzi, an Italian agricultural writer (1230-1320) -- Samuel Hartlib, Great Britain (1600-??) -- Gervase Markham, Great Britain (1568-1637) -- Sir John Sinclair, Scotland (1754-1835) -- John Stuart Skinner, American Farmer -- Jethro Tull, Great Britain (1674-??) -- Thomas Tusser, Great Britain (1524-1580) -- Jethro Wood, inventor of the modern plow -- Arthur Young, Great Britain (1741-1820)