10,846 Free Images of Scientific Research

jacques burkhardt scientific drawings harvard university jacques burkhardt watercolor on paper 1865 in art turtles in art pencil on paper 1866 in art 1852 in art 1855 in art

Shark? (side view and anatomical cross section) (China, December 1853), Jacques Burkhardt, 1853-12-??

jacques burkhardt scientific drawings sharks in art

Trionyx ferox Georgia (top view, with side view of head) (November 1855), Jacques Burkhardt, 1855-11-??

jacques burkhardt scientific drawings 1855 in art

Turtle (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings turtles in art

Sternopygus astrabes (Teffe, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings 1866 in art

Turtle (top view) (May 1854), Jacques Burkhardt, 1854-05-??

jacques burkhardt scientific drawings turtles in art

Turtle (side view), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Unidentified fish (1856; 2 fish), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Cichlid larvae (Teffe, Brazil, 14 September 1865; 7 parts), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle shell (top view) (2 September 1852), Jacques Burkhardt, 2 September 1852

jacques burkhardt scientific drawings turtles in art

Lithodoras dorsalis (Para, Brazil, 15 January 1866), Jacques Burkhardt

jacques burkhardt scientific drawings 1866 in art

Pogonopoma parahybae (Parahiba, Brazil, 22 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view, right-side half), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Turtle on grass (side view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

Cichlid eggs (Teffe, Brazil, 18 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (bottom view) (1858), Jacques Burkhardt, 1858-??-??

jacques burkhardt scientific drawings turtles in art

Turtle (top view) (18 June 1858), Jacques Burkhardt, 18 June 1858

jacques burkhardt scientific drawings turtles in art

Tatia sp. (Teffe, Brazil, 11 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Lingula (three views) (Sullivan's Island, Charleston, South Carolina, 3 March 1852), Jacques Burkhardt

jacques burkhardt scientific drawings 1852 in art

Rhamdia sp. (Teffe, Brazil, 28 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view) (Cuba), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Emerita talpoida (Say) (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings 1855 in art

Symphysodon aequifasciata (Teffe, Brazil, 28 September 1865)), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cichlid larvae (Teffe, Brazil, 14 September 1865; 2nd drawing), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle emerging from egg (4 October 1853), Jacques Burkhardt, 4 October 1853

jacques burkhardt scientific drawings turtles in art

Sternopygus macrurus (Lake January, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings 1866 in art

Unidentified specimen and two cross sections (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings 1857 in art

Otolithus (Rio de Janeiro, Brazil, 11 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Sorubim lima (Tonantins, Brazil, 17 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Trionyx ferox Georgia (top view) (November 1855), Jacques Burkhardt, 1855-11-??

jacques burkhardt scientific drawings 1855 in art

Testudo elephantopus (front and top views of head) (Galapagos Islands, March 1856), Jacques Burkhardt, 1856-03-??

jacques burkhardt scientific drawings 1856 in art

Turtle (top view) (Cambridge, Mass., May 1854), Jacques Burkhardt, 1854-05-??

jacques burkhardt scientific drawings turtles in art

Two cichlids (Manaos, Brazil, 17 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Cichlid eggs (Teffe, Brazil, 18 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Mollusk (Naushon Island, Mass.), Jacques Burkhardt

jacques burkhardt scientific drawings mollusca in art

Turtle (bottom view) (May 1852), Jacques Burkhardt, 1852-05-??

jacques burkhardt scientific drawings turtles in art

Hypostominae? (Coary, Brazil, 22 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Hemipholis (Charleston, South Carolina, 13 March 1852), Jacques Burkhardt

jacques burkhardt scientific drawings 1852 in art

Satanoperca acuticeps (Teffe, Brazil, 16 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (side view) and three legs, Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Sternopygus macrurus (Lake January, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings 1866 in art

Turtle (bottom view) (Natchez, Mississippi), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Prochilodus nigricans (Monte Alegre, Brazil, 25 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Labrisomus nuchipinnis (Rio de Janeiro, Brazil, 3 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (bottom view and cross section of head) (Cambridge, Mass., 22 July 1850), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Doris (two views) (Charleston, South Carolina, 10 January 1852), Jacques Burkhardt

jacques burkhardt scientific drawings 1852 in art

Hybonotus variegatus (Breves, Marajo, Brazil, 21 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Satanoperca acuticeps (Teffe, Brazil, 27 September 1865), Jacques Burkhardt, 2 February 1866

jacques burkhardt scientific drawings 1865 in art

Turtle (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings turtles in art

Diplectrum Holbrook (Rio de Janeiro, Brazil, 14 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Symphysodon aequifasciata (Lake January, Brazil, 28 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings turtles in art

Otolithus (Rio de Janeiro, Brazil, 12 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Rineloricaria sp. (Lake Coary, Brazil, 23 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Unidentifiable loricariid (Lake January, Brazil, 29 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Serranus (Rio de Janeiro, Brazil, 1 June 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view and three cross sections) (Cambridge, Mass., 21 July 1850), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Turtle (top and bottom view) (Tarboro, North Carolina), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings turtles in art

Tortoise (California, 1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings 1857 in art

Turtle (side view), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Serranus (Rio de Janeiro, Brazil, 30 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Rineloricaria sp. (Teffe, Brazil, 11 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Chrysemys oregonensis (top view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings chrysemys picta bellii

Turtle (top view) (Cuba), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Cichlid larvae (Teffe, Brazil, 14 September 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Shark? (top view) (China, December 1853), Jacques Burkhardt, 1853-12-??

jacques burkhardt scientific drawings sharks in art

Rhithropanopeus harrisii (Cambridge, Mass., May 1852; 5 crabs), Jacques Burkhardt, 1852-05-??

jacques burkhardt scientific drawings 1852 in art

Turtle (Rockland County, New York), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Propimelodus eigenmanni (Para, Brazil, 12 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (bottom, top and side views) (1852), Jacques Burkhardt, 1852-??-??

jacques burkhardt scientific drawings turtles in art

Buccinum trivittatum (Nantucket, Mass., 30 August 1847), Jacques Burkhardt

jacques burkhardt scientific drawings illustrations of snails

Rineloricaria sp. (Teffe, Brazil, 28 September 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Glyptoperichthys gibbiceps (Teffe, Brazil, 11 and 15 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Four mollusk drawings, Jacques Burkhardt

jacques burkhardt scientific drawings illustrations of snails

Bunocephalus coracoideus (Tajapuru, Brazil, 22 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Trionyx Natchez (top view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Trionyx ferox Georgia (bottom view and two anatomical cross sections) (December 1855), Jacques Burkhardt, 1855-12-??

jacques burkhardt scientific drawings 1855 in art

Squilla neglecta (5 February 1852), Jacques Burkhardt, 5 February 1852

jacques burkhardt scientific drawings 1852 in art

Turtle (top view) (Cambridge, Mass., May 1854), Jacques Burkhardt, 1854-05-??

jacques burkhardt scientific drawings turtles in art

Twelve turtles and two turtle heads, Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Satanoperca acuticeps (Maues, Brazil, 17 December 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Nannostomus sp. (Lake January, Brazil, 22 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (bottom view) (Cambridge, Mass., June 1852), Jacques Burkhardt, 1852-06-??

jacques burkhardt scientific drawings turtles in art

Trionyx Natchez (bottom view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings 1856 in art

Turtle on grass (side view), Jacques Burkhardt

jacques burkhardt scientific drawings turtles in art

Mollusk and anatomical cross section (Nahant, Mass., 13 September 1854), Jacques Burkhardt

jacques burkhardt scientific drawings mollusca in art

Serrasalmus sp. (Maues, Brazil, 18 December 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Rineloricaria sp. (Lake Coary, Brazil, 22 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Farlowella sp. (Lake January, Brazil, 23 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings turtles in art

Serranus (Rio de Janeiro, Brazil, 30 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Glyptoperichthys gibbiceps and Pseudacanthicus spinosus (Teffe, Brazil, 5 and 9 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Heroinii (Lake January, Brazil, 27 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Hypoptopoma gulare and Pseudacanthicus spinosus (Teffe, Brazil, 11 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Turtle (top view) (Cambridge, Mass., June 1852), Jacques Burkhardt, 1852-06-??

jacques burkhardt scientific drawings turtles in art

Crabs (10 April 1851; 3 specimens), Jacques Burkhardt, 10 April 1851

jacques burkhardt scientific drawings crabs in art

Sternopygus macrurus (Lago Maximo, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings 1866 in art

Saurus truncatus (Rio de Janeiro, Brazil, 15 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings 1865 in art

Stingray (Para, Brazil, 5 January 1866), Jacques Burkhardt

jacques burkhardt scientific drawings 1866 in art

Turtle (top view) (May 1852), Jacques Burkhardt, 1852-05-??

jacques burkhardt scientific drawings turtles in art

Turtle on grass (side view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

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