08-31-2016, 04:17 PM
Got it - thanks, chaps! It is F12, the Seventh Cestus, 15, page 75-81: 'To Find the Width of a River and the Height of a Wall'. Do you need the whole section? If so, I can take pics and convert it into a rough pdf and email it over.
Francis Hagan
The Barcarii
The Barcarii