Personal NotesFront cover and spine of the parchment binding
Binding: inside of the front cover
Physics & MechanicsFaint studies of a suspended rod and a device
Personal NotesMemorandum on Cristofano da Castiglione
Fables & ProseFable of the proud water
Personal NotesMemorandum: Stefano Caponi has Euclid's 'De ponderibus'
HydraulicsCommunicating vessels: a stone raises the water
Physics & MechanicsWeights on a beam swung from vertical to horizontal
Physics & MechanicsTwo loaded beams: testing the sag of an arch under a hung weight
Physics & MechanicsTwo beams made to prop each other by a hanging weight
Physics & MechanicsTwo bells of equal weight but double size sound lower
HydraulicsCommunicating vessels: water pressed up through a pipe
Physics & MechanicsStrength of a beam set vertical, horizontal and oblique
Physics & MechanicsWhy heavy bodies fall: driven to the center of the spheres
Physics & MechanicsThe centre of the world and the centre of the earth's weight
Machines & DevicesConcentric circular mechanism with an axle, faintly drawn
Physics & MechanicsHeavy parts long to return upward; three cited authors
Figure StudiesMasquerade costume studies: tall hats and profile faces
Ornament & HeraldryMasquerade costume: hats, ribbons and garments
Figure StudiesCostumed figure in a cope and head of a 'wild man'
Figure StudiesStanding figure and three articles of clothing
Fables & ProseOil recipe and an aphorism on liberty and love
Blank page (folio 11r)
Machines & DevicesSquare frame of four crossed rods, a circle at each crossing
Machines & DevicesBlocks joined by a rod
Machines & DevicesPinwheel or vaned wheel (girandola)
Machines & DevicesMechanism with a wheel and rods
Physics & MechanicsThe most-loaded part of a lower support
Physics & MechanicsJoined horizontal rods with numbers; a maxim on experience
Machines & DevicesScrew-held tilting mechanism with a heavier arm
Civil EngineeringExcavating machine with a double pulley for lifting spoil
ArchitecturePart of a building; two pyramids hung at their centre of gravity
GeometryHexagon in a circle and sketches for building works
Blank page (folio 16v)
Civil EngineeringDiagram for excavation works with tools a b and n m
Fables & ProseThe folly of endless toil
Machines & DevicesCutting a groove in the 'grotta' with a toothed rake
Blank page
Personal NotesBlank leaf (folio 19 recto)
Physics & MechanicsThe chimney-sweep: force of a body braced in a flue
Physics & MechanicsPassavolante and pincers: two problems of force
Physics & MechanicsHammer and nail; a note on cruel and kindly Nature
Fables & ProseTwo Aphorisms: The Candle-Flame and the Drunkard's Wine
Machines & DevicesIndeterminate Sketches: Hatched Form and Line Studies
ArchitectureArchitectural Studies: Portals
Horses & AnimalsStudy of a horse's right leg and hoof
Horses & AnimalsStudies of a Horse's Legs and Hooves
ArchitectureGround Plan with a Note on Canals Behind the Houses
Machines & DevicesStudies of Circles and Wheels, Possibly Mechanisms
Horses & AnimalsRed-Chalk Offset from the Facing Horse Study (25r)
Horses & AnimalsStudy of a Horse's Hindquarters and Hind Leg
LandscapeStudy of a Cloud Mass
LandscapeRed-Chalk Offset from the Facing Cloud Study (25v)
GeometryJointed semicircles and a circle inscribed in a square
Fables & ProseAllegory of Ink and Paper, with a Note on Air Resistance
AnatomyAnatomy: The Simple Members and the Parts of the Head
AnatomyCross-section of the head: scalp, skull and brain layers
Machines & DevicesTwo drilling devices: a drill and an auger
Physics & MechanicsA weight upon a support, with a prayer to the Lord
GeometryEvery angle of a triangle as centre of intersecting circles
Fables & ProseFable of the fire and the water in the cooking pot
Blank page
Machines & DevicesTimber pieces cut with interlocking joints
Machines & DevicesCarpenter's joints, tools, and a red-chalk furnace
Machines & DevicesInterlocking joints for a lock; a definition of impact
HydraulicsBifurcation of a channel and its water levels
HydraulicsTwo channel bifurcations and their water levels
Sculpture & CastingRecipes for tempering steel and imitating jasper amber
Physics & MechanicsOn the weight an animal can move by its own strength
Fables & ProseFable of the artisan and the lord
Sculpture & CastingWeaving asbestos fibre into a boat or strong vessel
Optics & LightA sieve seen from afar; a pulley mechanism
Optics & LightWhich wall is more lit past an opaque body
Sculpture & CastingCasting proportions: earth to metal, wet and dry
Sculpture & CastingCasting recipes and a rod hung from two cords
ArchitectureColumn profile with notes on marcasite and a herbal
Fables & ProseThe soul provides for the body; the fish and its slime
Physics & MechanicsCompound Flight of an Arrow, with a Double-Bow Crossbow
Physics & MechanicsProportion Between a Thrown Stone's Motion and Its Mover
Painting & PerspectiveRecipes for Black Drawing Ink and for Casting Bronze
HydraulicsReading a Hidden River-Bed, and a Recipe for Oil
Physics & MechanicsWeight-Pulling Machines of Equal Power, with a Hydraulic Wheel
Machines & DevicesSketches of Mechanisms
Machines & DevicesRough sketch of a mechanism in red chalk
Machines & DevicesSpring bolts (chiavistelli con molle)
Sculpture & CastingCasting recipe and a note on light and apparent size
Machines & DevicesBell with ringing mechanism, and a decorative design
Machines & DevicesCloth-shearing machine, with a maxim on necessity
Personal NotesNear-blank leaf with a later inscription
ArchitectureProfile of a column base, with three fables
ArchitectureColumn profile with proportional relationships
Physics & MechanicsPyramid suspended at its centre of gravity; circles
Physics & MechanicsWhy a man sliding on ice does not fall
Machines & DevicesDevice for weighing the force that turns a millstone
Machines & DevicesDevice for weighing a fall of water
Fables & ProseFable of the plant, the dry stake and the brambles
Physics & MechanicsExperiments on the motion of turning wheels
Blank leaf (folio 48v)
ArchitectureBlank leaf with faint offset of a drawing
Physics & MechanicsBalanced bars, added sums, and a court-hall measurement
Physics & MechanicsDivided bars and weight-boxes with paired numbers
Physics & MechanicsBeam rotating in a quadrant: balancing a against b
Physics & MechanicsA falling heavy body seeks the centre of the world
Physics & MechanicsA weight on two beams meeting head to head
Physics & MechanicsRod Hung by Two Cords: Lightening of a Load
Blank Page (Bianco)
Personal NotesBlank leaf with faint offset of writing
Physics & MechanicsHammer Driving a Nail into a Wooden Frame
Optics & LightReflected Light Between Two Mirror Surfaces
Machines & DevicesBolt-Latch Rod and Vault Geometry Schemes
Optics & LightCrossing Bodies Appear Multiplied; Birds' Wings
ArchitectureGround Plan of Milan Cathedral
GeometryConcentric Circles Crossed by Bundles of Rays
Machines & DevicesMachine for hoisting roof and floor beams
GeometryFaint Rectangle on a Blank Page
HydraulicsCanal Lock Gate with Stone Abutments
HydraulicsCanal Lock Gate with Operating Gear
Optics & LightOn the Doubling of Lights, with Sketches
Physics & MechanicsSuspended rods and a balance beam with weights
Sculpture & CastingRecipe for aqua fortis and for casting a copper figure
Physics & MechanicsCentre of gravity of a suspended weight
Machines & DevicesIntermittent-motion gear with a stepping wheel
Machines & DevicesScrew-and-cogwheel mechanism with plan views
Personal NotesTerms for the use of the instrument
ArchitectureBraced framework (palisade?) in perspective and plan
Personal NotesDraft Address to Ludovico, Duke of Bari
Physics & MechanicsCurvature of the Earth, Towers, and Mechanisms
GeometrySuperimposed Squares and Concentric Circles
Machines & DevicesBlank leaf (folio 64r)
Machines & DevicesShearing Machine, Pulley Weights, and a T-Instrument
GeometrySimple Cube and Eightfold Cube
Ornament & HeraldryInterlace Knot Ornament and a Rod Joined to a Curve
Physics & MechanicsThe crushing weight of deep water
Physics & MechanicsTwo aphorisms: gravity and the pupil who surpasses his master
Blank leaf (folio 67r)
GeometryA knife cutting a ball
GeometryA square and a cube, with a note on showing a model
GeometryPythagorean theorem: squares with inscribed circles
GeometryPythagorean proof on sides 6, 8 and 10
GeometryFinding the area of a circular segment
GeometryFinding the surface of a sphere
GeometryFinding the volume enclosed by a sphere
GeometryFinding the area of a circle
GeometryFinding a circle's centre from a chord and its sagitta
Physics & MechanicsFriction of stacked weights, with an old woman's bust
Physics & MechanicsWeights suspended from angled rods
Physics & MechanicsWeights suspended from angled rods
Physics & MechanicsCords on rollers: what weight at m lifts 10 pounds at n
Personal NotesRecipe: a caustic paste to dissolve hair and nails
Fables & ProseInvective against men who only fill privies
AnatomyHippocrates on semen; a mill rod; reflected colour
HydraulicsMotion of water: a vortex and water draining through a hole
HydraulicsWhy circles on water do not break where they cross
Blank page (folio 76v)
Blank page (folio 77r)
Physics & MechanicsPercussion and a cord loaded over a level beam
Blank page (folio 78r)
HydraulicsMechanism for opening a water sluice
Machines & DevicesCross-armed hub mechanism
Physics & MechanicsArch of beams balanced by counterposed weights
BotanySketch of a leaf and a faint indeterminate figure
GeometryStudies of 45-degree angles and two framed figures
Physics & MechanicsA beam rotating through a quarter-circle
Machines & DevicesGeometry of a screw thread and its pitch
Machines & DevicesCalculating the power of a screw and lever
Physics & MechanicsForce of pulley blocks, with arithmetical notes
Physics & MechanicsThe force of pulley-blocks and how to reckon it
Physics & MechanicsLoad, lever and winch: proportion of weight to force
Physics & MechanicsMultiplying body-weight by the wheels of a tackle
Physics & MechanicsThe pulley wheel as a perfect balance
Physics & MechanicsBalancing unequal counterweights; a moral aphorism
Physics & MechanicsCalculations for a tackle: rope drawn versus load raised
Physics & MechanicsForce, weight, time and motion in tackle blocks
Machines & DevicesA twenty-wheel pulley train and its windlass
Physics & MechanicsPulleys and the Windlass: Cord Gathered in Lifting
Optics & LightMirror Alloy; Light Eating into a Body's Shadow
Horses & AnimalsNotes on Horses, with a Fluted Bowl Sketch
Personal NotesHousehold Names and Workshop Memoranda, 1493
Personal NotesNear-Blank Leaf with a Single Mirror-Script Line
Blank End-Leaf with the Forster Bequest Stamp
Inside of the back cover (binding)
Personal NotesBack cover of the notebook's limp vellum binding