"Account of Engin by Harrison Engin Maker at Spalding"
"Dimensions and Scantlings of a 22 Feet Post Engine (Vizt)"
"Dimensions and Scantlings of a 26 Feet Post Engine"
Rex Wailes - G Eland
"Scantlings & Dimensions of Engines, with the prices for building the same by Mr. Grundy"
Windmills and millwrighting file