Teórica y práctica de fortificación (Madrid, 1598) — the printed course of a royal academy of mathematics

A captain of engineers printed in 1598 the fortification lectures he had been ordered to give in the royal academy at Madrid, after a doctor there began reading Euclid to soldiers. The book asks for Euclid and arithmetic before it asks for courage, argues that shortening the defences to musket range halves the cost of a fortress and of its garrison, and devotes its third part to how contractors cheat on lime. It also says, without embarrassment, that a castle must command the town it defends.