A classic on this subject. Written by noted poultry expert S.C. Sharpe, creator of th Light Sussex, he was also one of the three great Secretaries of the british Sussex Poultry Club. The other two were Leo Outram and Clem Watson (both noted Sussex authors in their own right). Excellent genetic info and history of the breed. Explains matings and the commercial value of each color variety. A "must read" for anyone contemplating breeding and/or understanding Sussex fowl.