whistled very loudly through the air, and at the other shots the ball came quiet and still.
At page 33, at Question 7.

At page 34, at Question 8.

Which will go further: a heavy ball or a light one.

At page 34, at Questions 9 & 10.

Certain rules by which, through the knowledge of the diameter and weight of one ball, the weight or the diameter of any other can be determined.

At page 35, at Questions 11 & 12.

The determination of the diameter of several balls by lines found geometrically through the knowledge of a given diameter.

The subject of the Questions of the Third book.

At page 37, at Questions 1 & 2.

How the knowledge of Saltpeter and its nature is very ancient and how there are various species of it.

At page 38, at Question 3.

For what cause the ancients did not know how to compose gunpowder for artillery.

At page 38, at Question 4.

What virtue or particular office each of the three simples or materials has, namely Saltpeter, Sulfur, and Charcoal, in the composition of powder.

At page 39, at Question 5.

Who was the inventor of powder, and with what reason the proportion of the quantity of each of said three materials was determined.

At page 39, at Question 5.

Of the various orders, both ancient and modern, used in the composition of coarse and fine powders.

At page 41, at Question 6.

How one can know a powder to be more powerful than another.

At page 41, at Question 7.

How one can augment the powder in virtue or potency.

At page 42, at Question 8.

Whether it is necessary to limit the composition of powder for heavy artillery from that of the fine small-grain powder and from that of the arquebuses and muskets.

At page 42, at Questions 9 & 10.

For what cause grain is given to the powder of arquebuses, and not to that of artillery.

The subject of the Questions of the Fourth book.

At page 43, at Questions 1 & 2.

How one must proceed, wanting to reduce a quantity of infantry or an army into a square battle formation of men, and at how many per file they should be made to walk during a journey or march, so that when the need arises they can be put into order with ease.

At page 46, at Question 3.

How one must proceed wanting to make an ordinance similar to a given one for any quantity of infantry.

At page 47, at Question 4.

How one must proceed wanting to reduce a quantity of infantry or an army into a square battle formation of terrain.

At page 47, at Questions 5 & 6.

How one must proceed with a quantity of infantry wanting to form a wedge or a pair of shears a tactical formation consisting of two angled wings.

At page 48, at Question 7.

What advantage an army formed in wedge shape would have when the enemies do not know how to constitute the shears.

At page 49, at Question 8.

How one should proceed wanting to form a saw from a quantity of infantry.