Georgeson - Steer-feeding Experiments... - paperback or softback - X555z

Various - Feeding of Chickens - New paperback or softback - 10 - X555z

Hartwell - My Zimbabwean Odyssey - New paperback or softback - X555z

Collison - Citrus Fertilizer Experiments - New paperback or softback - - X555z

Hartwell - Unlikely Earl - New paperback or softback - X555z

Thompson - Hog Feeding Experiments B342 - New paperback or softback - X555z

Bowdler - A Haunting at Hartwell Hall - New paperback or softback - X555z

Hartwell - Some Recent Feeding Experiments - New paperback or softback - X555z