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And if in these three books I do not fully satisfy your Most Excellent Lordship, together with your aforementioned most expert bombardiers original: "bombardieri"; these were the elite artillerymen and technical specialists responsible for the operation and maintenance of heavy cannons., I hope shortly, through the practice of the fourth and fifth books—not indeed in print (for several reasons) Tartaglia likely withheld these books from print to protect military secrets or to maintain his own value as a private consultant to the state. but rather by pen or by word of mouth—to partially satisfy your Highness, along with those to whose grace I, as a most low and humble servant, devoutly recommend myself.
Given in Venice, in the new houses of San Salvatore, on the 20th of December, 1537.