The fourth edition (first published 1795) of the first book on power grain milling and a landmark of early American technology. Writing in 1935 Bathe says of it “There is to this day, at least one mill owner known to the writer, who has a copy of Oliver Evans’ Mill-wright in his office to which he says quite frankly he refers often, considering it is still in many repects the most practical work for millers ever published”. As a practical handbook it is hardly surprising that copies, where they have survived, are usually in poor condition.