Codex Atlanticus28 pages

• Index for the Book on Water: Rivers, Currents and Floods
• Highland Lakes from Landslides, and Surface Geometry
• The Nile's source and the great rivers of Asia
• The center of the world in continual motion
• Blank verso, devoid of writing and drawings
• On the Destructive Power of Rivers in Flood
• Raising a Tall Mast, a Screw for Descent, and the Body of the Earth
• On Light and on the Sea that Girds the Earth
• Letter to the Diodario: The Figure of Mount Taurus
• The common centre of the elements and the centre of gravity
• How Rivers Build and Destroy Mountains
• Rivers pouring into the sea: winds, currents and sandbars
• How Water Moves Through the Veins of the Earth
• Elements, Underground Water, and a Lifting Machine
• Winds descending mountains: waves, eddies and whirlwinds
• Geometry of lunes: proportional division of circles
• Water dismantles mountains and fills the valleys
• Squaring a rectangle: the gnomon and Euclid's Elements
• Topography of Lake Como and the Alpine Valleys
• The Catastrophe Letter, with Notes on Bormio and Valsassina
• Oblique balances, compasses, and the squaring of lunes
• The tides as the breathing of the Earth
• The growth of the earth, and prose on the sea monster
• Nothing and the Void; Earthquakes and Lune Quadrature
• On wind in caverns and the whirling motion of water
• The Mediterranean basin and the making of valleys
• River strata, water sediment and an oblique beam
• Dividing a Pyramid in Septuple Proportion

Codex Arundel36 pages

• How rivers and rain wear away mountains and banks
• How rivers cut mountains and widen valleys
• Book 7 on water: currents that hollow banks and beds
• River Courses Between Their Banks in Flood and Low Water
• The Behaviour and Eddies of River Water
• A Programme of Books on Rivers and Water
• The ceaseless turnings of water and the sponge analogy
• Concave mirrors, the cloud as a bombard, and water reshaping the earth
• River meanders eroding mountain roots; mill and weight notes
• Waves, wind on water, and the circles of birds' flight
• Cracks in walls, splitting vaults, foundations, and earth's strata
• Nature, the flood-borne shells, and the great cavern
• The end of the world, and a fossil fish in the mountain
• The power of the arch: chord, shoulders and where it breaks
• How Rivers Widen and Deepen Their Valleys
• The Circulation of Water Through Earth, Sea and Sky
• Cube roots, solid surfaces, and man compared with the earth
• 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
• On the weight of water and the centre of the world
• August 1504 accounts and the movement of stones in rivers
• River scour on the Bisarno and the petrifying of ooze
• How Rivers Carve Mountains and Widen Valleys
• A plan of 'books' on rivers, embankments and the earth's waters
• Water Rising Through the Earth, and a Treatise-Plan on Water
• The Restless River: Erosion and the Making of Clouds
• River meanders eroding valleys, with mills and a weight
• Structural cracks, drying clay, and the earth's strata
• The Great Cavern, and the Two Lines of Fossil Shells
• Water, Vital Humour of the Earth, in Endless Circulation
• Water as the blood of the earth
• Vital heat and the circulation of the earth's waters
• Household accounts, 1504, and stones moved by river currents
• River erosion and petrification on the Bisarno; a plant study

Codex Forster II3 pages

• Three spheres: the earth with mountains, and numbers
• Two mountains rising from the earth's circumference
• Equidistant centres of weight and the earth's shifting centre

Codex Forster III2 pages

• The centre of the world and the centre of the earth's weight
• Curvature of the Earth, Towers, and Mechanisms

Codex Madrid I1 pages

• The Common Center of Earth and Water; a Bell Motion

Codex Madrid II2 pages

• Oblique cuts of the citadel rock toward the sea
• The never-emptied barrel, rivers moving the earth, and whirlpools

Codex Urbinas (Treatise on Painting)4 pages

• Aerial perspective of mountains; how the 'chain of the world' forms
• How rivers carve valleys, form lakes, and wear mountains down
• How mountains grow; painting the plants of mountainous country
• Painting mountain summits and the trees down to their roots

Paris Manuscript A7 pages

• The movement of river water: floods, meanders, and surface flow
• Beginning of the treatise on water: the body of the earth
• Why water rises to mountain summits: heat and the earth's veins
• Water's endless circulation and why blood rises to the head
• Why rivers shift their beds, what foam is, and how water scours a pit
• River pits, cataracts, and the erosion of riverbeds
• Meandering currents and the erosion of riverbanks

Paris Manuscript E2 pages

• Sound in a Pipe and Marine Shells That Raise the Mountains
• Squaring the Oblique Triangle; Measuring the Sphere of Water

Paris Manuscript F22 pages

• Why the old die: closing veins, and the veins of the earth
• Eddies, Sediment, and Why a River Is Never Level
• How Rivers Carve Mountains from Land Risen from the Sea
• Eddies on a riverbed and the sorting of gravel, sand and mud
• The rebound of falling bodies; the sphere of water on the earth
• Why a lagoon drains to the sea through a narrow channel
• Which water keeps its straight course below a river sluice
• The Adapting Pupil, Angle of Incidence, and Water on Mountains
• If the earth were a perfect sphere the waters would cover it
• Local motion of dust: mounds formed on a struck board
• River Fall and Whether the Sea Sits Higher Than Mountains
• Do Bodies Weigh More in Air Than Under Water?
• Why the earth's center of gravity lies at the world's center
• Springs on Mountain Peaks; Water Falling into a Channel
• Angle of Contingency; Why the Sea Seems Higher than Land
• River Eddies, Floating Debris, and Scour Beneath a Gate
• Water eddies (retrosi): two kinds of vortex in a river
• How sea shells become fossils enclosed in rock
• How fish bones survive inside petrified fish
• The shell as the animal's house; leaves preserved in stone
• Against the idea that the stars made shells in the mountains
• Moon Spots, the Levelling Earth, and Canal Waves

Paris Manuscript G8 pages

• The heart as a muscle, a triangular pyramid, and Mombracco stone
• Why water in a straight river runs an oblique, bank-to-bank course
• Why the Ocean does not soak into the land
• Why the Sea Is Salt: Against Pliny's Explanations
• The Salt of the Sea, Continued; and How Not to Bore a Listener
• On the Tremor of the Earth; a Bird Gliding Under the Wind
• On the Motion of Ships; Water Wearing Away Its Banks
• Whether water can rise from the sea to the mountain tops

Paris Manuscript H10 pages

• Mass of water and sand, in red chalk
• How river water carries and deposits sand and silt
• Waves over the riverbed and the shifting of sand
• Water, waves and sand around a stone
• Where a river drops its sediment
• Swift water dives under slow, and sorts sand from gravel
• Eddies and Scouring Around Stones in a Current
• Circular building with a mobile dome; water as a mountain's blood
• Water as the vital humour of the earthly machine
• Water's circulation through the body of the earth

Paris Manuscript I16 pages

• Cross-section of a watercourse bed: tufa, sand and mud
• Waterfall and a River Bed Scoured into a Well
• Water Around a River Rock: Sand Deposits and Whirlpools
• River Bed and a Cascade Carving the Bank
• River Features Defined, with a List of Water's Actions
• Beginning of the Book of Waters
• How a Cross-Current Breaks a Riverbank and Sorts the Debris
• Water Undercutting a Bank into a Cavern
• The Threefold Motion by Which Rising Water Scours a Bank
• How Water Deepens and Scours Where a River Narrows
• Floods, Rolling Stones and a Scour Hole at a Florentine Mill
• Collision of water masses; a crescent-shaped bed and river bends
• Canal bottoms of various forms and the fall of water
• How floodwater lifts, carries and deposits sediment
• How a river scours and deposits along its bed
• Cavities scoured in a riverbed (c, n, m, r)

Paris Manuscript K2 pages

• Water, the carrier of nature; a horn-shaped mountain cavity
• A programme to record how water scours and silts riverbeds and banks

Paris Manuscript L4 pages

• River silt, the earth's shifting centre, and a vision test
• Erosion and the shifting centre of the earth's gravity
• Sediment carried by rivers, and the winding of floodwaters
• Mountains and valleys reshaping the terrestrial sphere

Paris Manuscript M3 pages

• How Water Sorts and Moves Sand on the River Bed
• How Falling Water Sorts Sand by Size and Weight
• Sand Waves and Crossed Currents in Rivers

Uffizi Drawings1 pages

• Panoramic landscape of a river valley with a rocky gorge