Hay-Makers1791 · Stipple engraving, with roulette, on ivory laid paperImage/plate: 48.4 × 68.5 cm (19 1/16 × 27 in.); Sheet: 53.7 × 71.3 cm (21 3/16 × 28 1/8 in.)Art Institute of Chicago
A Sleeping Leopard1791 · Soft-ground etching with roulette work; second state of two7 1/8 x 9 5/16 in. (18.1 x 23.7 cm)The Metropolitan Museum of Art
Labourers1789 · Etching, with stipple engraving, roulette, rocker and burnishing, on ivory wove paperImage/plate: 52.6 × 70 cm (20 3/4 × 27 9/16 in.); Sheet: 55.5 × 72.2 cm (21 7/8 × 28 7/16 in.)Art Institute of Chicago
A Lion (A Lion Resting on a Rock)1788 · Etching with roulette work; only state13 1/4 x 10 1/4 in. (33.7 x 26.0 cm)The Metropolitan Museum of Art
A Tyger (A Recumbent Leopard by a Tree)1788 · Etching with roulette in black on off-white wove paperSheet: 25.6 × 32.8 cm (10 1/8 × 12 15/16 in.); Image: 22.5 × 31.3 cm (8 7/8 × 12 3/8 in.)Art Institute of Chicago
Dog (A Foxhound Viewed from Behind)1788 · Roulette work with etching; first and only state4 1/8 x 5 in. (10.5 x 12.7 cm)The Metropolitan Museum of Art
A Horse Affrighted at a Lion1788 · Etching with roulette work; third state of threesheet: 9 7/8 x 12 in. (25.1 x 30.5 cm)The Metropolitan Museum of Art
A Horse Affrighted by a Lion1777 · Etching and engraving on cream laid paperImage: 34.1 × 45.9 cm (13 7/16 × 18 1/8 in.); Sheet: 36.5 × 47.7 cm (14 3/8 × 18 13/16 in.)Art Institute of Chicago
A Horse Frightened by a Lion1777 · Etching with engraving on paperImage: 34.5 × 46 cm (13 5/8 × 18 1/8 in.); Plate: 37.4 × 48 cm (14 3/4 × 18 15/16 in.); Sheet: 38.5 × 50 cm (15 3/16 × 19 11/16 in.)Art Institute of Chicago
The Third Duke of Dorset's Hunter with a Groom and a Dog1768 · Oil on canvas40 x 49 3/4 in. (101.6 x 126.4 cm)The Metropolitan Museum of Art
WattsOSTAThe Anatomy of the Horse1766 · Book with twenty-four engravings in black on cream laid paper, in boxBox: 51.4 × 64.7 × 4.3 cm (20 1/4 × 25 1/2 × 1 3/4 in.); Book: 48 × 61.3 × 2.4 cm (18 15/16 × 24 3/16 × 1 in.)Art Institute of Chicago
The Anatomy of the Horse, including a particular description of the bones, cartilages, muscles, fascias, ligaments, nerves, arteries, veins, and glands1766 · Illustrations: etching18 1/4 x 23 in. (46.4 x 58.4 cm)The Metropolitan Museum of Art