Codex Atlanticus14 pages

• A wheeled gun-engine, cube-root line, and a horse
• Centres of Gravity of Pyramids, Prisms and Cubes
• Squaring the Circle: Lunes, Sectors and Perforated Circles
• Household expense account, with faint geometry and a horse's head
• Squaring the Circle and Circling the Square
• Studies of Pulleys, Gears and Springs
• Squaring lunes: rectangles, sectors and semicircles
• Why Thinner Axles and Larger Wheels Turn More Easily
• The eye: refraction and inversion of images in vision
• Heads in profile and front view, with an eye study
• Dividing a line in three; walking, oxen and river control
• Hauling Machine Worked by Men, with a Horse Study
• Two faint charcoal fish revealed by restoration (verso)
• War machines: mantlet, gun-wheel, and tower-assault engine

Codex Arundel1 pages

• Allegorical caparison for Antonio Grimani

Codex Forster III6 pages

• Study of a horse's right leg and hoof
• Studies of a Horse's Legs and Hooves
• Red-Chalk Offset from the Facing Horse Study (25r)
• Study of a Horse's Hindquarters and Hind Leg
• The soul provides for the body; the fish and its slime
• Notes on Horses, with a Fluted Bowl Sketch

Codex Madrid II4 pages

• The detachable casting channel; a faint chalk horse beneath the text
• 20 December 1493: to cast the horse lying down and tailless
• Piece-Mould for the Horse's Head and Neck
• Armature for Casting the Bronze Horse

Codex Urbinas (Treatise on Painting)6 pages

• How to Depict a Battle: the Dead, the Dust, the Vanquished
• Painting a Battle: Blood, Fallen Men, and Charging Horses
• Weight on the feet, speed of motion, and how animals walk
• Translucent Flesh Shadows; A Wild Site; An Invented Animal
• Treatise index: the human figure in motion and repose
• Index to Part Three: figures, distance, and animal motion

Paris Manuscript A1 pages

• Proportion studies of the horse's head and human face

Paris Manuscript B6 pages

• The scythed war-chariot, with the ronfile and rocace
• Machinery for a clean horse-stable
• Design of a Clean Stable in Three Aisles
• Fording a river with skin-floats and files of horses
• Camels and horses fording rivers on inflated skin-floats
• Foot soldiers crossing a river chained arm-in-arm

Paris Manuscript D1 pages

• The Human Eye: The Pupil's Adaptation to Light and Dark

Paris Manuscript G2 pages

• On the Variety of Figures; Becoming a Universal Painter
• Head of a Horse; a Horse Running Through Water

Paris Manuscript H20 pages

• The Elephant: Its Mercy, Its Fears, and Its Habits
• The Elephant and the Dragon; The March of the Dragons
• The Serpent of Regulus, and the Boa
• The Boa's Swallowed Child, and the Elk (Macli)
• The Bonasus, the Great Cats, and the Lioness
• The Lion's Fears and the African Panther
• Bestiary: a beast's fatal beauty, and the camel
• Bestiary: the tigress deceived by mirrors
• Bestiary: the catoblepas and the basilisk
• Bestiary: basilisk, weasel, and cerastes
• Bestiary: amphisbaena, jaculus, and the asp
• Bestiary: the ichneumon and the crocodile
• Chameleon and crow, with a stone in swirling water
• Allegory of Foul Repute, with a River-Bed Profile
• A Dog Bearing a Message, a Two-Span Bridge and a Confluence
• Parts of a cart and a horse's profile
• A cart drawn by two horses with a rider
• Horse's head with bridle and harness
• Harnessed horse with saddle and shaft attachments
• Latin verb endings and a red-chalk horse's head

Paris Manuscript I1 pages

• Proportion Study of a Dog's Muzzle

Paris Manuscript K2 pages

• Black-Chalk Study for the Battle of Anghiari
• Muscles Attaching to Bone; Horse Skeleton Studies

Paris Manuscript L1 pages

• Two kneeling youths; a note on books and whitening a horse

Paris Manuscript M2 pages

• The fish's tail as propeller; contact of two currents
• Swimming shows the method of flying

Turin Drawings6 pages

• Nude Studies for the Battle of Anghiari and Other Figures
• Hercules with the Nemean Lion
• Studies of the Musculature of a Horse's Forelegs
• Studies of a Horse's Hindquarters and Hind Legs
• Studies of Insects: a Winged Insect and a Dragonfly
• Studies of Scythed War Chariots

Ambrosiana Drawings10 pages

• Animal Studies on a Torn Sheet
• Study of a Bounding Animal
• Study of a Horse in Red Chalk
• Study of a Horse's Head, Frontal View
• Finished Study of a Horse's Head in Profile
• Red-Chalk Study of a Horse's Head in Profile
• Studies of a Prancing Horned Animal
• Study of a Rearing Horse
• Rearing Horses and a Standing Nude Figure
• Faint Sketch of a Rearing Beast and Struggling Animals

Uffizi Drawings7 pages

• Perspective study: arcade, staircase and figures
• A winged dragon fighting a lion
• Cavalry locked in furious combat
• Studies of Fighting Horsemen
• Studies of Warriors' Heads and Helmets
• Sheet of Profile Heads and Horse Studies
• Sheet of Profile Heads with Animal and Horse Studies

American Collections16 pages

• Study of a Horse and Rider
• A Walking Bear, with a Study of Its Forepaw
• Studies of Infants Playing with an Animal
• Sheet of figure and horse studies for a composition
• Studies of a Horse's Head, a Bird and a Youthful Head
• Rider on a rearing horse with fallen figures
• Rearing horse and winged combatant figures
• Verso with faint horseman and standing figure
• Red-chalk study of a horned bull
• Study of a Horse's Head in Profile
• Seated Infant Embracing a Small Bear
• Cloaked Rider Seen from Behind
• Six Studies of Cats in Various Poses
• Faint Studies of a Horse in Motion and a Reclining Figure
• Studies of Cats Fighting and Playing
• Studies of Cats and Small Beasts

Accademia Drawings12 pages

• Figure Studies with Flying Putti and a Kneeling Woman
• Studies of Polearms with a Cavalry Combat Above
• Proportion Study of a Head, with Nude and Horseman
• Study of a Seated Woman Embracing Children
• Battle studies: foot soldiers and horsemen in combat
• Two battle scenes: cavalry skirmishes
• Cavalry battle melee with figure studies
• Rearing Horse with a Rider
• Red Chalk Study of a Seated Group with Infant and Lamb
• Pen Sketch of a Crowd of Figures and Horsemen
• Compositional Study of a Figure Group with a Rearing Horse
• A Rural Landscape with Peasants and Grazing Animals