Codex Atlanticus16 pages

• Counterweight for a lever's friction, with a dissection note
• How the Eye Sees Things Placed Before It
• Finger motion and the squaring of curved triangles
• Prefaces on experience, the muscles, and the eye
• How Water Moves Through the Veins of the Earth
• Vision, mirrors and the anatomy of the eye
• Rat breeding, sun-moon-earth eclipses, and hand muscles
• The eye: refraction and inversion of images in vision
• The eye: intersection of visual rays and inverted images
• Figure of the eye: contrary apparent motion of images
• The theory of vision: light, colour and the eye
• Balance and friction rules, and a design for a pleasure garden
• Wheels on Pivots; Crossed Optic Nerves; a Buckle Account
• Light Reduced to a Point; the Eye and Water Studies
• Copper-melting furnace and embryonic umbilical studies
• Spinning top and the motion of water in the veins

Codex Arundel13 pages

• Bellows with contrary valves for furnaces
• The bird's eye and the angle of incidence on a sphere
• The nature and origin of force
• The Four Accidental Powers and Crossbow Ballistics
• Light through a window, the eye's inner sense, and hair recipes
• Water as the vital humour of the earth's body
• The circulation of water through the earth's veins
• Water as the Vital Humour of the Earth
• Water, Blood and Sap: the Earth's Great Circulation
• The Nature of Force: Daughter of Motion, Mother of Weight
• The Eye, Light Through a Window, and Recipes for the Hair
• Water as the blood of the earth
• Vital heat and the circulation of the earth's waters

Codex Forster II1 pages

• Note on prominent veins; seed inventory and sums

Codex Forster III3 pages

• Anatomy: The Simple Members and the Parts of the Head
• Cross-section of the head: scalp, skull and brain layers
• Hippocrates on semen; a mill rod; reflected colour

Codex Madrid II1 pages

• Perspective of colours; figures pushing and pulling

Codex Urbinas (Treatise on Painting)24 pages

• Where to Stand to the Light; Judging Limbs and Anatomy
• Muscles in Action and the Vice of Repeating Faces
• Treatise on Painting: the anatomist-painter and the 'wooden' figure
• Treatise on Painting: muscles through life's ages, and natural poses
• Children's Slender Joints and the Proportions of Men
• Measurements of the Body and the Bending of the Arm
• Proportion of the Limbs; Joints of the Hand and Foot
• Limbs That Swell or Shrink When Bent; Muscles in Action
• The Three Movements of the Neck; Faults of the Painter
• Which Muscles to Show, and the Kinds of Motion
• The Quality of Nudes: Slender, Muscular and Fat Bodies
• Muscles in Movement and When to Show Them
• Show Muscles Only in Straining Limbs; Skin Over Muscle Hollows
• Do Not Search Out Every Muscle in a Nude
• How Nature Hides the Bones; Skin, Fat, and Aging
• Why the Painter Must Know Anatomy
• Tendons Without Muscle and the Body's Sesamoid Bones
• The Utmost Twist to Look Behind; Arms Behind the Back
• Crossed Arms and the Windup of a Great Blow
• The Elbow as a Lever: Why Pulling Beats Pushing
• Why the Straight Arm Cannot Push, and the Flesh at the Joints
• The Knee Bends Only Forward, and Rising from a Kneel
• Contents of Part Three: The Single Figure, Attitudes and Muscles
• Contents of Part Three: Anatomy, Force and Motion of Man

Codex on the Flight of Birds1 pages

• Persuasion for the Undertaking: The Power of Wings

Paris Manuscript A2 pages

• Why water rises to mountain summits: heat and the earth's veins
• Water's endless circulation and why blood rises to the head

Paris Manuscript D19 pages

• Front cover of the notebook
• Spine of the closed notebook
• The Eye: Unequal Visual Power and the Convex Pupil
• Why a light's rays seem to spread as it nears the eye
• The Eye: How Images Enter and Bend Within the Eye
• The pinhole eye: images enter inverted, the sense sees them upright
• The Human Eye: How Images Cross Twice Within the Eye
• A water-filled glass eye model and the two intersections of vision
• The Human Eye: Pupil Size, Mirrors, and Two-Eyed Vision
• The whole pupil sees: refuting the single-point of vision
• Why the owl sees by night: pupil size and the brain's chamber
• The Human Eye: The Pupil's Adaptation to Light and Dark
• The Human Eye: Vision Fills the Whole Pupil, Not a Point
• The pupil widens in the dark; a wider pupil enlarges the image
• The eye: why the right does not appear on the left in vision
• The eye as a camera obscura: how images cross and refract inside it
• Why lights seem to sprout rays: reflection on the edges of the eyelids
• The eye: proportions of images, and where the 'idol' forms
• Species fill all the air, and why the eye cannot fix a remote edge

Paris Manuscript E5 pages

• Departure for Rome; leaping, the weighted foot, and the vacuum
• Composite vs. Simple Perspective; a Note on Joints
• Advice to the painter-anatomist on muscles
• Raising and Lowering the Wing, and the Wing-Bone
• Bird flight: wing feathers, landing, and steering in the wind

Paris Manuscript F2 pages

• Why the old die: closing veins, and the veins of the earth
• Anatomy of the finger nerves; recipes for imitation branching

Paris Manuscript G5 pages

• The heart as a muscle, a triangular pyramid, and Mombracco stone
• On the Variety of Figures; Becoming a Universal Painter
• Muscles of Animals and the Hollows Between Them
• The eyes of animals: how pupils respond to light
• Mechanical measurements, a ruler, breathing, and mathematics

Paris Manuscript K5 pages

• Muscles Attaching to Bone; Horse Skeleton Studies
• Programme for dissecting the leg; a male nude
• Horse skeleton and a plan for comparative anatomy
• A crystal model of the eye's lens
• The eye's spherical lens, and boiling an eye to dissect it

Paris Manuscript L2 pages

• Muscles that Raise the Body in Climbing
• On painting: knowing anatomy to render nudes

Turin Drawings1 pages

• Studies of the Musculature of the Legs

Uffizi Drawings2 pages

• Two studies of the human skeleton
• Pen studies of a human skeleton, front and side

Accademia Drawings2 pages

• Muscles of the Arm, Shoulder and Chest
• Muscles of the Leg, Shoulder and Neck