The 29th on Medical Authors, and on Medicines from other Animals.
The 30th on Magic, and Medicines for certain parts of the Body.
The 31st on Medicines from Aquatic Animals.
The 32nd on the other properties of Aquatic Animals.
The 33rd on Gold and Silver.
The 34th on Copper and Lead, and the workers of Copper.
The 35th on Painting, Colours, and Painters.
The 36th on Marbles and Stones.
The 37th on Gems.