10,637 Free Images of Classification

jacques burkhardt scientific drawings harvard university jacques burkhardt watercolor on paper pencil on paper turtles in art smithsonian libraries identification early works to 1800 ireland

Hypselecara coryphaenoides (Lago Maximo, Brazil), Jacques Burkhardt

jacques burkhardt scientific drawings hypselecara

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

jacques burkhardt scientific drawings turtles in art

Semionotus fultus (New York, N.Y.), Jacques Burkhardt

jacques burkhardt scientific drawings pencil on paper

Two starfish (Neuchatel, Switzerland, January 1837), Jacques Burkhardt, 1837-01-??

jacques burkhardt scientific drawings pencil on paper

Emys elegans (bottom view) (New Orleans, Louisiana), Jacques Burkhardt

jacques burkhardt scientific drawings emys

Echinoderm and anatomical cross sections (Tortugas, Florida, 1858), Jacques Burkhardt, 1858-??-??

jacques burkhardt scientific drawings echinodermata

Solen ensis (Nahant, Mass., 1864) (6 drawings), Jacques Burkhardt, 1864-??-??

jacques burkhardt scientific drawings pencil on paper

Emys elegans (top view) (New Orleans, Louisiana), Jacques Burkhardt

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings turtles in art

Uaru amphiacanthoides (Teffe, Brazil), Jacques Burkhardt

jacques burkhardt scientific drawings watercolor on paper

Unidentified specimen (Cambridge, Mass., June 1852), Jacques Burkhardt, 1852-06-??

jacques burkhardt scientific drawings watercolor on paper

Fossil (back, side, and front views) (New York, N.Y.), Jacques Burkhardt

jacques burkhardt scientific drawings fossils

Echinoderm (Neuchatel, Switzerland, 1837), Jacques Burkhardt, 1837-??-??

jacques burkhardt scientific drawings echinodermata

Mylossoma aureum (Tonantins, Brazil), Jacques Burkhardt

jacques burkhardt scientific drawings mylossoma

4 turtle drawings (2 top and 2 bottom views) (Cambridge, Mass., May 1852 and May 1854), Jacques Burkhardt, 1852-05-??

jacques burkhardt scientific drawings 1852 in art

GHS pictogram for hazardous substances; inofficial pictogram “Unknown”

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

jacques burkhardt scientific drawings turtles in art

Turtle (top view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

Microphrys bicornutus (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings 1855 in art

Emys mobiliensis (side view of head) (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings emys

Turtle (top view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

Turtle (top view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

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

jacques burkhardt scientific drawings turtles in art

Emys picta (top view) (Cambridge, Mass., 1852), Jacques Burkhardt, 1852-??-??

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings turtles in art

Turtle (top view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

Bryozoa and anatomical cross section (Key West, Florida, 1858), Jacques Burkhardt, 1858-??-??

jacques burkhardt scientific drawings watercolor paintings

Mollusk (Charleston, South Carolina, 14 March 1852), Jacques Burkhardt

jacques burkhardt scientific drawings mollusca in art

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

jacques burkhardt scientific drawings turtles in art

Emys hoyii (side view) (Western Missouri, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Bryozoa and anatomical parts (Tortugas, Florida, 8 April 1856), Jacques Burkhardt

jacques burkhardt scientific drawings 1856 in art

Kinosternon flavescens (bottom view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings kinosternon

Chelonia midas (side view of head), Jacques Burkhardt

jacques burkhardt scientific drawings chelonia mydas (illustrations)

Fossil fish (two segments) (New York, N.Y.), Jacques Burkhardt

jacques burkhardt scientific drawings fish fossils

Geophagus altifrons (Belem, Brazil), Jacques Burkhardt

jacques burkhardt scientific drawings geophagus

Emys floridana (partial top view) (Natchez, Mississippi), Jacques Burkhardt

jacques burkhardt scientific drawings emys

Unidentified fish (Nahant, Mass., 31 July 1850), Jacques Burkhardt

jacques burkhardt scientific drawings watercolor on paper

Cistudo (side view), Jacques Burkhardt

jacques burkhardt scientific drawings watercolor paintings

Clupanodon aureus Spix, Jacques Burkhardt, 8 June 1865

jacques burkhardt scientific drawings watercolor on paper

Kinosternon odoratum (bottom view), Jacques Burkhardt

jacques burkhardt scientific drawings kinosternon

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

jacques burkhardt scientific drawings 1857 in art

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

jacques burkhardt scientific drawings turtles in art

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

jacques burkhardt scientific drawings turtles in art

Conger, Jacques Burkhardt, 11 June 1865

jacques burkhardt scientific drawings watercolor on paper

Echinoderm (Neuchatel, Switzerland, 1837), Jacques Burkhardt, 1837-??-??

jacques burkhardt scientific drawings echinodermata

Ceten graulis edentular Cuv., Jacques Burkhardt, 8 June 1865

jacques burkhardt scientific drawings watercolor paintings

Cistudo (side view), Jacques Burkhardt

jacques burkhardt scientific drawings watercolor paintings

Carapus cinctus (Tabatinga, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings watercolor paintings

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

jacques burkhardt scientific drawings turtles in art

Micropteryx cosmopolita Agassiz, Jacques Burkhardt, 30 April 1865

jacques burkhardt scientific drawings watercolor on paper

Heros efasciatus, Jacques Burkhardt

jacques burkhardt scientific drawings heros efasciatus

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

jacques burkhardt scientific drawings turtles in art

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

jacques burkhardt scientific drawings 1866 in art

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

jacques burkhardt scientific drawings turtles in art

Kinosternon flavescens (top view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings kinosternon

Uranoscopus occidentalis Ag., Jacques Burkhardt, 2 June 1865

jacques burkhardt scientific drawings watercolor on paper

Serranus (Bermuda, 1862; fish and partial fin), Jacques Burkhardt, 1862-??-??

jacques burkhardt scientific drawings pencil on paper

Turtle (bottom view) (June 1854), Jacques Burkhardt, 1854-06-??

jacques burkhardt scientific drawings turtles in art

Chorinemus saliens, Jacques Burkhardt, 24 June 1865

jacques burkhardt scientific drawings watercolor paintings

Fossil fish and anatomical cross section (1854), Jacques Burkhardt, 1854-??-??

jacques burkhardt scientific drawings fish fossils

Stingray (New York, N.Y., 23 November 1847), Jacques Burkhardt

jacques burkhardt scientific drawings watercolor on paper

Bryozoa (Key West, Florida, March 1858), Jacques Burkhardt, 1858-03-??

jacques burkhardt scientific drawings bryozoa

Centropomus, Jacques Burkhardt, 15 January 1865

jacques burkhardt scientific drawings watercolor paintings

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

jacques burkhardt scientific drawings turtles in art

Saxicava (Nahant, Mass., 1864) (9 drawings), Jacques Burkhardt, 1864-??-??

jacques burkhardt scientific drawings pencil on paper

Malaclemys concentrie head (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings 1855 in art

Three turtles (side view) (June 1854), Jacques Burkhardt, 1854-06-??

jacques burkhardt scientific drawings watercolor on paper

Mesoprion (Florida, June 1860), Jacques Burkhardt, 13 June 1860

jacques burkhardt scientific drawings lutjaniformes

Starfish (Neuchatel, Switzerland, 1837), Jacques Burkhardt, 1837-??-??

jacques burkhardt scientific drawings asteroidea

Kinosternon odoratum (top view), Jacques Burkhardt

jacques burkhardt scientific drawings kinosternon

Heros efasciatus, Jacques Burkhardt

jacques burkhardt scientific drawings heros efasciatus

Emys marginata (1 top and 2 bottom views), Jacques Burkhardt

jacques burkhardt scientific drawings emys

Engraulis Janeiro, Jacques Burkhardt, 8 July 1865

jacques burkhardt scientific drawings watercolor on paper

Alligator mississippiensis (April 1850), Jacques Burkhardt, 1850-04-??

jacques burkhardt scientific drawings watercolor paintings

Nine fish-scale cross sections (New York, N.Y.), Jacques Burkhardt

jacques burkhardt scientific drawings watercolor on paper

Cistudo (side view), Jacques Burkhardt

jacques burkhardt scientific drawings watercolor paintings

Emys floridana (top view) (Mobile, Alabama, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys serrata (top view) (December 1855?), Jacques Burkhardt, 1855-12-??

jacques burkhardt scientific drawings emys

Turtle (bottom view) (1857), Jacques Burkhardt, 1857-??-??

jacques burkhardt scientific drawings turtles in art

Mollusk (Charleston, South Carolina, 10 February 1852), Jacques Burkhardt

jacques burkhardt scientific drawings mollusca in art

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