T A B L E

Chap. 2. On the method of testing the Saltpeter, so that one may know if it is well refined and pure. 262

Chap. 3. Of some diverse and very beautiful ways of refining spoiled powder. folio 263

Chap. 4. In what way from a quantity of spoiled Powder one will be able to make another smaller quantity of fine Powder, there being no other Saltpeter than that which is found in the spoiled Powder. 266

Chap. 5. Of some ways of making Powder with great speed, finding the materials of which the Powder is composed. 267

Chap. 6. On the method of testing the Powder to be able to know which is the best. 269

Chap. 7. Of many differences of Balls, Fires, Trumpets, Pots, and artificial Fuses. 271

Chap. 8. Of the composition of simple Balls. 272

Chap. 9. Of the second difference of Balls, which are those called composite. 276

Chap. 10. Of the third difference of Fires, which we said are armed Balls, and of their composition. 287

Chap. 11. Of the fourth difference of Fires, which are those used in times of festivity. 290

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OF THE SEVENTH TREATISE

First Reasoning; In which the new General of Artillery makes an election of his Lieutenant, a man of much practice and experience, as he demonstrates in his Reasoning. folio 298

Second Reasoning made by the General of Artillery and his Lieutenant, in which one treats of the good qualities that must concur in the person of a General, of the preeminence of the office, with many other particulars pertaining to it. 299

Third Reasoning, in which the Lieutenant continues in the begun Practice of that which belongs to and touches the office of a General of Artillery: and things of much importance are treated there for any