Front cover with inked 'H' and leather fastening
Back cover of the vellum wallet binding
Spine of the closed binding
Head edge with fore-edge flap open and endband
Edge view with leather toggle fastening
Spine and fore-edge of the text block
Fore-edge of the closed notebook, with inked inscription
Flyleaf with the manuscript designation 'H'
Blank flyleaf
Flyleaf with a single inked letter
Language & LatinLatin conjugation of 'amo' and a note on a lockable joint
Blank verso (folio 1v)
HydraulicsRiver and sand studies, with a Latin conjugation of 'amare'
Blank page (folio 2v)
HydraulicsMass of water and sand, in red chalk
Language & LatinLatin conjugation of 'amare' (singular forms)
Language & LatinLatin conjugation of 'amare' (plural forms)
Figure StudiesIndefinite figures in red chalk
Fables & ProseLove of Virtue and the Caladrius Bird
Fables & ProseEnvy, Joy and Sadness: Kite, Cock and Raven
Fables & ProsePeace and Wrath: the Beaver and the Bear
Fables & ProseGratitude and Avarice: the Hoopoe and the Toad
Fables & ProseIngratitude and Cruelty: the Dove and the Basilisk
Fables & ProseLiberality and Correction: the Eagle and the Wolf
Fables & ProseBestiary: Flattery, Prudence and Folly
Fables & ProseBestiary: Justice and Truth
Fables & ProseBestiary: Fidelity and Falsehood
Fables & ProseBestiary: Lying, Fortitude and Fear
Fables & ProseBestiary: Magnanimity and Vainglory
Fables & ProseBestiary: Constancy, Inconstancy and Temperance
Fables & ProseBestiary: Intemperance (unicorn) and Humility (lamb)
Fables & ProseBestiary: Pride, Abstinence, and Gluttony
Fables & ProseBestiary: Chastity, Lust, and Moderation
Fables & ProseBestiary: the Eagle and the Lumerpa
Fables & ProseBestiary: Pelican, Salamander, and Chameleon
Fables & ProseBestiary: Alep-fish, Ostrich, Swan, and Stork
Fables & ProseBestiary: Cicada, Bat, Partridge and Swallow
Fables & ProseBestiary: Oyster, Basilisk and Asp
Fables & ProseBestiary: Dragon, Viper and Scorpion
Blank page (folio 15v)
Blank leaf
Fables & ProseFour maxims in red chalk
Fables & ProseBestiary: the Crocodile (Hypocrisy) and the Toad
Fables & ProseBestiary: the Caterpillar, the Spider, and a motto on Toil
Fables & ProseBestiary: the Lion, emblem of virtue and of the wary captain
Fables & ProseBestiary: the Tarantula and the Owls, with a recipe of measures
Fables & ProseBestiary: the Elephant, model of virtue and religion
Fables & ProseBestiary: the Elephant continued, its mercy and social order
Fables & ProseThe Elephant: Its Mercy, Its Fears, and Its Habits
Fables & ProseThe Elephant and the Dragon; The March of the Dragons
Fables & ProseThe Serpent of Regulus, and the Boa
Fables & ProseThe Boa's Swallowed Child, and the Elk (Macli)
Fables & ProseThe Bonasus, the Great Cats, and the Lioness
Fables & ProseThe Lion's Fears and the African Panther
Fables & ProseBestiary: a beast's fatal beauty, and the camel
Fables & ProseBestiary: the tigress deceived by mirrors
Fables & ProseBestiary: the catoblepas and the basilisk
Fables & ProseBestiary: basilisk, weasel, and cerastes
Fables & ProseBestiary: amphisbaena, jaculus, and the asp
Fables & ProseBestiary: the ichneumon and the crocodile
Fables & ProseBestiary: the crocodile, trochilus, ichneumon and dolphin
Fables & ProseBestiary: the hippopotamus, ibis and stag
Fables & ProseBestiary: lizard, swallow, weasel, boar, serpent, panther
Fables & ProseChameleon and crow, with a stone in swirling water
Machines & DevicesThe viola organista: a spring-return bow mechanism
Machines & DevicesSketches for the viola organista: head and keys
Machines & DevicesViola organista parts; channel eddies and riverbed
Machines & DevicesOrbital-trestle crane and the yearly water cycle
HydraulicsHow river water carries and deposits sand and silt
HydraulicsMill channels and how water strikes the wheel
HydraulicsWaves over the riverbed and the shifting of sand
HydraulicsWater rings from thrown stones; the 'More' emblem
Painting & PerspectivePerspective through a viewing hole, with four moral maxims
Ornament & HeraldryDecorative knotwork with a confluence of watercourses
Ornament & HeraldryDecorative interlace designs in chalk and pen
Machines & DevicesA watering can, with maxims on memory and rebound
HydraulicsWater, waves and sand around a stone
Machines & DevicesTilting crucibles and a watercourse detail
Ornament & HeraldryInterlace knot designs and a river-bed sediment profile
Physics & MechanicsSingle-piece arch between two blocks; water and bank erosion
Physics & MechanicsVoussoir arch of sixteen stones and a forking watercourse
Physics & MechanicsBending of arched supports and a gravel-and-water study
Physics & MechanicsPyramidal heaps of pebbles and the level of water
HydraulicsRiver scouring, gravel deposition, and a foundation figure
BotanyVines of Vigevano and a Building Plan on a Canal
Machines & DevicesMill Wheel and Double Timber Trestle for a Watercourse
HydraulicsHinges and a River Barrage: Iron Worn by Running Water
HydraulicsHow a Submerged Obstacle Sheds Sand
Fables & ProseAllegory of Foul Repute, with a River-Bed Profile
Horses & AnimalsA Dog Bearing a Message, a Two-Span Bridge and a Confluence
ArchitectureBridge in section, elevation and plan; household accounts
Machines & DevicesMechanical apparatus lettered C, R, N
Machines & DevicesThe same mechanical apparatus, repeated
ArchitectureBeams over crenellated walls and a strong floor
HydraulicsLaundry building and the erosion of a divided current
Physics & MechanicsDynamometer with weights, river-flow notes, and a knot
Physics & MechanicsArm and pulley force studies, with a fable of the lily
ArchitectureDesign for a field pavilion tent
ArchitectureDesign for a conical camp tent
Machines & DevicesThe viola organista and its mechanism
HydraulicsWhere a river drops its sediment
HydraulicsHow long objects travel in a canal current
HydraulicsEddies of water and where currents shed their load
HydraulicsSluice gate seen from the front and in plan
Fables & ProseMoral emblems of the ermine, the cock and the parrot
Painting & PerspectiveRules of appearance for the eye, and crossing water currents
Ornament & HeraldryHeraldic shield, an eye-and-mirror diagram, and a deep well
HydraulicsRiver currents, water level, and an apparatus of cylinders
HydraulicsCanal profiles, falling water, and the Vigevano pavilion
HydraulicsWater courses and the beds of rivers
Fables & ProseThe oyster, the rat and the cat; gauging raised water
HydraulicsHow rising water thins; a two-braccia waterfall diagram
HydraulicsTurbid water, river banks, and gold-panning in the Ticino
HydraulicsSwift water dives under slow, and sorts sand from gravel
HydraulicsWater Vessel and the Deepening of a Falling Stream
HydraulicsDescending Canal: the Upper Water Overtakes the Lower
HydraulicsWatercourse: Depth Traded for Width and for Speed
HydraulicsCanal Profile: Rebounds, Dragged Air, and the Falling Surface
HydraulicsWhich Canal Discharges More? Faster Flow at the Surface
HydraulicsStraight Descent versus Winding Descent of Equal Length
HydraulicsChannel on a Slope and Four Equal Outlet Holes
HydraulicsCanal Barrier with Three Openings a, b, c
HydraulicsWater Spouting at Different Levels; Force of Impact
HydraulicsChannel Slopes and Falling Balls: Doubling of Motion
HydraulicsChannel and Flow Diagrams in Red Chalk
HydraulicsA System of Channels: Equal Slope Gives Equal Speed
HydraulicsFalling water in sloping channels: speed versus length
Ornament & HeraldryOrnamental knots and a note on bodies in air and water
Fables & ProseWhy plants feel no pain when they are broken
Ornament & HeraldryEnvy wounds virtue; ornamental knot and foliate studies
Fables & ProseFame rises, infamy falls; and which water strikes harder
Machines & DevicesGrinding mill, paddle-wheel beam frame and channel profile
HydraulicsWater Through a Narrowing Channel
HydraulicsThe Blow of Water and the Sorting of Stones
HydraulicsWater Striking a Mill Wheel
Fables & Prose'Death Before Loss of Freedom': the Goldfinch Emblem
HydraulicsEddies and Scouring Around Stones in a Current
Lists & AccountsHousehold Accounts of 29 January 1494
HydraulicsFall of the Martigiana canal and a river-bed depth note
HydraulicsThe stepped cascade of the Sforzesca
Optics & LightShadow gradation and gravel on the river bed
ArchitectureTwo plank-decks of beams
Fables & Prose'On the Soul': the reach of motion, sound, and mind
HydraulicsWater speed on a slope, and the height of waves
HydraulicsEddies Gnawing Canal Banks; Light Beyond the Mountains
HydraulicsCurrents, Waves, and the Weight of Water
HydraulicsCurved Water-Lines and a Ship's Displacement
HydraulicsIntersecting Jets of Water and Wine
HydraulicsColliding Currents Fight and Ruin the Banks
Machines & DevicesSketches of Mechanical Parts and a Pulley
Optics & LightEye at an Aperture and Water Rebounding at Equal Angles
Physics & MechanicsBarrier Across a Canal and a Balance of Force
HydraulicsConfluence of Two Currents
Machines & DevicesTwo Screw-and-Nut Devices and the Decay of Sound
Machines & DevicesScrew for Lifting Weights, with Pulleys and Pile Driver
HydraulicsTwo Water Wheels and a Hydraulic Pump
Physics & MechanicsWeight pushing sideways; converging water jets
HydraulicsRiver gravel and the force of a paddle wheel
Physics & MechanicsClimbing stairs and the gathering centre of an eddy
Physics & MechanicsWater conduit and the balance of forces on a wheel
HydraulicsWater seeking its centre; weak and vigorous waterfalls
Optics & LightLock-gates, reflections in water, and the science of shadow
ArchitectureCircular building with a mobile dome; water as a mountain's blood
HydraulicsSlower water at the banks; why the air is blue; fading motion
HydraulicsBuying water by the ounce; how natural motion speeds up
ArchitectureElements of the folding wooden pavilion of Vigevano
ArchitecturePavilion corner and bolt; water falling over an angle
HydraulicsWater wheels: which the current drives best
HydraulicsCanal-boat in a vaulted gallery, with a stepped well
Physics & MechanicsPile-drivers, pulleys and a drawbridge: studies of weight
Machines & DevicesPerspective rule, arches, a pile-driver and its costs
Physics & MechanicsThe blow of a club, a balance, and a river's surface
HydraulicsRiver-bed studies: still water and a waterfall with eddies
HydraulicsEddies in a river and a gravel bed
HydraulicsHydraulic wheel and eddies below a fall of water
HydraulicsTwo channels compared and water falling into water
HydraulicsBalance with weights and the curved rebound of water
HydraulicsHow a straight channel scours its own bed
HydraulicsWhy a constriction destroys a channel's bed and banks
HydraulicsSurface water flows freer than the water beneath
Optics & LightWhy a larger pupil sees luminous bodies larger
Machines & DevicesLantern-pinion and toothed wheel: tooth wear and force
HydraulicsRiver currents: width, depth and reversed flow
HydraulicsCanal with two outlets; water that reverses its course
Optics & LightThe larger pupil sees luminous bodies larger
Fables & ProseAllegory of Il Moro; two water-wheels compared
HydraulicsA canal narrows, a framed pavilion, and clouds in motion
HydraulicsA branching canal; 'we make our life by others' death'
Machines & DevicesMethod for the waters, a roller gear and a columned frame
Painting & PerspectiveOn painting: the shifting highlight; a millstone's power
Civil EngineeringReckoning the cost of digging a canal in ducats
Optics & LightHow a luminous body appears to the eye
Physics & MechanicsBuoyancy: displaced water equals the weight it sustains
HydraulicsDeeper channels flow faster; weights resting on a cord
Machines & DevicesA screw-driven machine; water flows fastest at the surface
Physics & MechanicsHow a suspended weight divides between two supports
Lists & AccountsMemorandum of painter's materials, with a spoked wheel
Lists & AccountsPigment recipe and mill accounts, with a hinge
HydraulicsWater as the vital humour of the earthly machine
Arithmetic & ProportionNumbers in red chalk and a gloss on ancient military ranks
Machines & DevicesPlan of an oven with its measurements in ounces
Machines & DevicesOven drawing with lettered dimensions, a profile head and spelling drills
Machines & DevicesFull plan of the oven with all dimensions in ounces
Machines & DevicesInstruments for orientation: a level, a sundial and a bell device
Fables & ProseEmblems: the ermine, Fortune, and the ostrich
Fables & ProseEmblems: shuttle, skimmer, diamond, and hoe
Fables & ProseEmblems: object in a vice and a rusted sword
Fables & ProseEmblems: stalks, a horse's hoof, and a split branch
Fables & ProseEmblems: pincers, a wind-vane, and a shattered target
Fables & ProseEmblems of metalworking: furnace, touchstone, casting
Fables & ProseMoral emblems and a pendulum hammer
HydraulicsWater's circulation through the body of the earth
Weapons & FortificationDevice for spanning a crossbow
Weapons & FortificationCrossbows fitted with a spanning device
Machines & DevicesPeg-lifters driven by scroll wheels
Machines & DevicesGears, an interlace design, and a head in profile
Ornament & HeraldryDecorated Belt and a Toothed-Rod Device
Machines & DevicesThe Viola Organista and Its Details
Physics & MechanicsCentre of Weight; Note on Giulio and the Study Lock
Weapons & FortificationCart for Transporting Arquebuses; a Truss
Weapons & FortificationLoading a Bombard onto Its Cart, Seen from the Side
Lists & AccountsAccount of Work by Giulio and Maestro Tommaso, 1493
Machines & DevicesBench vise and a sectored-circle mechanism
Machines & DevicesCompass and a mechanical device
Machines & DevicesBalanced hoist
Machines & DevicesOrdinary and proportional compasses
Weapons & FortificationSpingarda with a note on the cat's eye at night
Machines & DevicesStudy for a reciprocating mechanical saw
Machines & DevicesDevices for alternating motion and a raisable platform
Machines & DevicesTwo gear-pairs with retaining teeth for alternating motion
Machines & DevicesVariable-ratio gear drive; plan of the Sforza Castle, Milan
Machines & DevicesStudy of a variable-ratio transmission
Machines & DevicesFurther studies of a variable-ratio transmission
Machines & DevicesFable of the peasant and the vine; gears for alternating motion
Machines & DevicesGear-trains for producing an alternating motion
Physics & MechanicsBeams shoring earth; rack-and-pinion reversing gear
Physics & MechanicsCart weight-load diagram and toothed-rod motions
Physics & MechanicsFramed mechanism and a perpetual-motion wheel
Machines & DevicesPin-wheels, gearing and a possible escapement
Physics & MechanicsThe heaviest part guides motion; saw and arrow
HydraulicsWater Overflowing Its Barriers Undermines the Dike
Machines & DevicesStudies of Compasses and Their Parts
Machines & DevicesCompass Heads and a Rod Hung by Three Cords
Ornament & HeraldryEmblem of a Censer: 'Terrible and Sweet'
Fables & ProseMaxims and the Emblem of the Vigilant Cranes
Fables & ProseMaxims on Justice and the King of the Bees
Fables & ProseSix Moral Maxims in Red Chalk
Machines & DevicesHook-and-Pawl Mechanisms for Locks
Machines & DevicesUndetermined Mechanism, Hook-Catch, and Architectural Elements
Machines & DevicesTwo Crank-Operated Devices with Saws
Machines & DevicesSprings(?) and Undetermined Devices; Ornamental Motifs
ArchitectureProportions of an Ionic Capital
Machines & DevicesCart parts: fixing the side-rail to the axle
Machines & DevicesRack-and-pinion lifting device and a cart part
Machines & DevicesCart construction: levers clamping the rail to the axle
HydraulicsHydraulic conduit with a filling-and-emptying sequence
Machines & DevicesTimber joints, a screw device, and a water-weight query
Lists & AccountsEstimate for painting a room in blue and gold
Lists & AccountsPainting estimate for a hall: cornices, scenes and colours
Machines & DevicesParts of mechanical devices: toothed wheels
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Language & LatinLatin grammar: declining the participles of 'legere'
HydraulicsRiver-bed studies, jotted aphorisms and numbers
HydraulicsRiver bend and waterfall: which current is faster
HydraulicsBack-eddies that lay down earth, with sums and a cart part
Physics & MechanicsRod suspended on two cords, plank tiers, and figures
Machines & DevicesParts of a cart and a horse's profile
Machines & DevicesUpper part of a cart, with a cost estimate in lire
Horses & AnimalsA cart drawn by two horses with a rider
Machines & DevicesGear device turning continuous motion into alternating
Machines & DevicesVertical screw turned by a lever; a hemisphere
Painting & PerspectivePerspective study of a sphere on a stand
Weapons & FortificationCart for transporting bombards; harness fittings
Horses & AnimalsHorse's head with bridle and harness
Horses & AnimalsHarnessed horse with saddle and shaft attachments
Machines & DevicesApparatus for alternating motion; Latin verb endings
Language & LatinLatin verb endings and a red-chalk horse's head
Language & LatinLatin future-tense paradigms, with red-chalk sketches
Language & LatinLatin imperatives of the four conjugations
Language & LatinLatin passive plural personal endings
Language & LatinLatin passive conjugation: present, past and future
Lists & AccountsRecipe for a wax, pitch and incense compound
Language & LatinThe verb 'to be' conjugated; an invective in red chalk
Lists & AccountsHousehold inventory: pewter, linens and candlesticks
Language & LatinLatin verb 'amare': infinitives, gerunds and participles
Language & LatinLatin verb 'amare' conjugated in the passive voice
Language & LatinLatin verb 'amare' conjugated in the active voice
Language & LatinPassive 'amare' endings, closing with two moral maxims
Language & LatinLatin conjugation of 'amare' (passive voice)
Physics & MechanicsPulley proportion, a covered cart, and geometric lattices
Language & LatinLatin verbs and 'Motion is the cause of all life'
Language & LatinLatin conjugation of 'amare' (impersonal passive)
Language & LatinLatin conjugation of 'amare' and a note on the legion
Lists & AccountsAccounts for Salai, geometry notes, and a seated figure
Blank end leaf with pencil foliation
Blank leaf near end of notebook
Inside back cover with wallet flap and toggle