TABLE.

first type, never seen until now, nor used by any Gunner. 52

Chap. 4. Of another third way of tertiare the pieces of this first type, different from the past. 55

Chap. 5. On the formation and modern casting of other Artillery pieces of this first type, with their different way of tertiare and thicknesses of metal. 56

Chap. 6. Of the effects that the trunnions cylindrical projections on the sides of a cannon used for mounting have on Artillery pieces, and the way to know if they are correctly placed upon them. 57

Chap. 7. Of the housings for the trunnions, and the way to carve them into the cheeks of the carriage of the pieces. 60

Chap. 8. Of a brief discourse made upon the lengths, heights, and thicknesses that the Carriages, Wheels, and Axles of the pieces of this first type must have. 61

Chap. 9. On the length, width, and thickness that the planks of the carriages of the Artillery pieces of this first type must have, so that they are well proportioned. 63

Chap. 10. Of the bolts or pins that connect and tighten the cheeks of the carriages together, and of their placement in them. 65

Chap. 11. Of the wheels of the pieces of Artillery of this first type, and of their proportion and height. 66

Chap. 12. Of the Axles of all the pieces, and of their formation and fittings. 68

Chap. 13. Of the sponges or mops for cleaning the Artillery pieces. 69

Chap. 14. On the formation of the rammers used for packing the powder inside the pieces. 70

Chap. 15. On the season of the year in which any timber should be cut, so that for a long time it may be preserved from rot or Woodworms. 71