Later quaternary ice sheet margin of the Delaware river valley
Edward Atkinson
Artificial cliff of Trenton gravels
1887 stereogram of the head of Delaware Bay
Inao of the Ainu
Ceratias bispinosus
Trenton gravels on top of Columbia loam and gravels
1887_stereogram of the head of Delaware Bay in late quaternary times
Pine tree lizards
Photichthys argenteus
Sense organs of an Aglaura hemistoma and a leech
The steel bar magnet
Moses Ashley Curtis
Blue tailed skink Eumeces fasciatus
The Earth a magnet
Variability of the earth magnetic force
1887 stereogram of the head of Chesapeake bay
United States Navy compass 1 Public domain photograph related to navy, naval warfare, free to use, no copyright restrictions image - Picryl description
Felix Alfred Vulpian
Magnetic force influencing compass direction
Ainu of Yezo Public domain scan of print / book page depicting birds, ornithology, free to use, no copyright restrictions image - Picryl description
United States Navy compass 2 Public domain photograph related to navy, naval warfare, free to use, no copyright restrictions image - Picryl description
The compensating binnacle Public domain photograph of electrical equipment, power lines, engine, free to use, no copyright restrictions image - Picryl description
16th century residential drainage concept
Proper drainage ventilation configuration
Late 19th century sanitary water closet and drainage
Varied magnetic features of iron ships
Overhead and vertical plan of a ship drydock
The greenland or harp seal phoca groenlandica
The hooded seal Stemmatopus cristatus
Magnetic forces of a ship concentrated on three planes
Inventional geometry fig 1
Southern sea lion - Otaria flavescens
Inventional geometry fig 2
Inventional geometry fig 3 and 4
Inventional geometry fig 6
Varieties of iron in a ship represented by equivalent rods
Inventional geometry fig 8
The Northern sea bear - Otavia ursina
The seal - Phoca vitulina
Inventional geometry fig 9
Stellers sea lion - Otaria stelleri
Inventional geometry fig 5 Public domain scan of geometry drawing, free to use, no copyright restrictions image - Picryl description
Inventional geometry fig 16
Inventional geometry fig 7
Eskimos spearing seals
Inventional geometry fig 10
Inventional geometry fig 18 Public domain scan of geometry drawing, free to use, no copyright restrictions image - Picryl description
Inventional geometry fig 13
Inventional geometry fig 11 Public domain scan of geometry drawing, free to use, no copyright restrictions image - Picryl description
Inventional geometry fig 12 Public domain scan of geometry drawing, free to use, no copyright restrictions image - Picryl description
Inventional geometry fig 14
Geologic time scale of earth
Inventional geometry fig 17
Inventional geometry fig 15 Public domain scan of geometry drawing, free to use, no copyright restrictions image - Picryl description
John Bernard Stallo
Teeth of Iguanodon
Hadrosaurus
Skull of Ceratosaurus
The operation of marvering
Dance of the lady crab Public domain scan of drawing of insect, zoological illustration, free to use, no copyright restrictions image - Picryl description
Successive stages in the manufacture of sheet glass
Casting plate glass
Three quarter blood buffaloes
Rotary grinding machine for plate glass
James Pollard Espy
Crown glass in decorative work
The hippopotamus of the Nile
Full blood domesticated buffaloes
Français : Pierre Belon. Español: Pierre Belon.
Brontosaurus
Half blood buffaloes
Portrait of the giraffe Picryl description: Public domain artwork of horse, equestrian horse riding, free to use, no copyright restrictions image.
Compsognathus and footprint of Brontozoum
The wren
Skeletons of a bird and man Public domain image of bird skeleton, anatomy, zoology, free to use, no copyright restrictions image - Picryl description
Table of Christian Science concept of psychogenesis
Interior of a sheet glass factory
Letter of James P. Espy
Attaching the ponty
Iguanodon