10,846 Free Images of Scientific Research

jacques burkhardt scientific drawings harvard university jacques burkhardt watercolor on paper emys 1856 in art 1865 in art pencil on paper 1855 in art 1852 in art

Gymnotus coropinae (Lago Maximo, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings gymnotus

Emys mobiliensis (bottom view) (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings emys

Laetacara thayeri (Teffe, Brazil, 5 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings laetacara

Emys (bottom view) (Washington, Mississippi, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Geophagus brasiliensis (Rio de Janeiro, Brazil, 22 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings geophagus

Mylossoma aureum (Teffe, Brazil, 14 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings mylossoma

Gymnotus coropinae (Tajapuru, Brazil, 28 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings gymnotus

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

jacques burkhardt scientific drawings emys

Emys floridana (partial top view) (Columbus, Georgia, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

Hepatus princeps (Herbst) (1 March 1852), Jacques Burkhardt, 1 March 1852

jacques burkhardt scientific drawings hepatus

Emys picta (anatomical part) (three views) (Boston, Mass., 30 June 1847), Jacques Burkhardt

jacques burkhardt scientific drawings emys

Myleus sp. (Maues, Brazil, 19 December 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings myleus

Emys pseudogeographica (top view) (Washington, Mississippi, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings echinodermata

Emys mobiliensis (side view) (Mobile, Alabama, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys elegans (side view) (Natchez, Mississippi, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

Mylossoma duriventre (Teffe, Brazil, 12 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings mylossoma

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

jacques burkhardt scientific drawings emys

Emys rubriventris (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Shrimp? (Somerville, Mass., April 1852), Jacques Burkhardt, 1852-04-??

jacques burkhardt scientific drawings 1852 in art

Emys insculpta (anatomical part) (three views) (Boston, Mass., 21 June 1847), Jacques Burkhardt

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

Emys rubriventris (top view) (Washington, D.C., 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys bellii and Emys marginata (bottom views) (March 1856), Jacques Burkhardt, 1856-03-??

jacques burkhardt scientific drawings emys

Loricaria sp. (Macacos, Brazil, 26 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings loricaria

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

jacques burkhardt scientific drawings emys

Emys bellii (side view) (Milwaukee, Wisconsin, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys pseudogeographica (side view of turtle and top view of head) (Washington, Mississippi, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys marginata (top view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys rubriventris (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Hypselecara temporalis (Teffe, Brazil, 10 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings hypselecara

Hepatus princeps (Herbst) (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings hepatus

Myleus sp. and Mylossoma aureum (Teffe, Brazil, 11 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings myleus

Emys rubriventris (bottom view) (December 1855), Jacques Burkhardt, 1855-12-??

jacques burkhardt scientific drawings emys

Emys serrata (side view) (Savannah, Georgia, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Mylossoma duriventre (Teffe, Brazil, 12 October 1865; fish and anatomical cross section), Jacques Burkhardt

jacques burkhardt scientific drawings mylossoma

Emys floridana (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys hoyii (side view) (January 1856), Jacques Burkhardt, 1856-01-??

jacques burkhardt scientific drawings emys

Ophiolepis elegans and unidentified specimen (Charleston, South Carolina, 30 January 1852), Jacques Burkhardt

jacques burkhardt scientific drawings ophiolepis

Echinoderm and five anatomical cross sections (Charleston, South Carolina, 20 February 1852), Jacques Burkhardt

jacques burkhardt scientific drawings echinodermata

Gymnotus arapaima (Lake January, Brazil, 16 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings gymnotus

Echinoderm (Charleston, South Carolina, February 1852), Jacques Burkhardt, 1852-02-??

jacques burkhardt scientific drawings echinodermata

Hypostomus emarginata and Pterygoplichthys pardalis (Rio Solimoes, Teffe, Brazil, 2 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings hypostomus

Emys geographica (turtle-head front and side views) (December 1855), Jacques Burkhardt, 1855-12-??

jacques burkhardt scientific drawings emys

Gymnotus coatesi (Gurupa, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings gymnotus

Hypselecara temporalis (Lake January, Brazil, 26 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings hypselecara

Emys decussata Cuba (side view and three anatomical parts) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Geophagus brasiliensis (Rio de Janeiro, Brazil, 19 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings geophagus

Emys rubriventris (top view) (Washington, D.C., 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Fossils (29 April 1847), Jacques Burkhardt, 29 April 1847

jacques burkhardt scientific drawings fossils

Geophagus brasiliensis (Rio de Janeiro, Brazil, 19 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings geophagus

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

jacques burkhardt scientific drawings emys

Eigenmannia sp. (Teffe, Brazil, 13 October 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings eigenmannia

Emys marginata (side view) (Milwaukee, Wisconsin, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Laetacara thayeri (Lake January, Brazil, 26 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings laetacara

Emys elegans (side view) (Washington, Mississippi, March 1856), Jacques Burkhardt, 1856-03-??

jacques burkhardt scientific drawings emys

Ophiolepis elongata (Sullivan's Island, South Carolina, 1852), Jacques Burkhardt

jacques burkhardt scientific drawings ophiolepis

Hypostomus sp. (Parahiba, Brazil, 24 May 1865), Jacques Burkhardt

jacques burkhardt scientific drawings hypostomus

Loricaria sp. (Macacos, Brazil, 26 May 1865) 2, Jacques Burkhardt

jacques burkhardt scientific drawings loricaria

Emys geographica (2 turtle-mouth views) (January 1856), Jacques Burkhardt, 1856-01-??

jacques burkhardt scientific drawings emys

Ophiolepis elongata (Four specimens) (Sullivan's Island, South Carolina, 14 December 1852), Jacques Burkhardt, 14 February 1852

jacques burkhardt scientific drawings ophiolepis

Emys rubriventris (side view) (January 1856), Jacques Burkhardt, 1856-01-??

jacques burkhardt scientific drawings emys

Geophagus proximus (Teffe, Brazil, 12 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings geophagus

Geophagus proximus (Teffe, Brazil, 12 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings geophagus

Emys serrata (side view) (Charleston, South Carolina, December 1855), Jacques Burkhardt, 1855-12-??

jacques burkhardt scientific drawings emys

Emys rubriventris (side view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Fossil (eight views) (3 April 1847), Jacques Burkhardt, 3 April 1847

jacques burkhardt scientific drawings fossils

Emys rubriventris (bottom view) (Washington, D.C., 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

Emys elegans (bottom view) (Washington, Mississippi, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys (top view) (Washington, Mississippi, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Kinosternon pennsylvania (three views of head) (1855), Jacques Burkhardt, 1855-??-??

jacques burkhardt scientific drawings kinosternon

Mylossoma aureum (Monte Alegre, Brazil, 25 August 1865), Jacques Burkhardt

jacques burkhardt scientific drawings mylossoma

Metynnis sp. (Lago Jose Assu, Brazil, 28 August 1865; 2 fish), Jacques Burkhardt

jacques burkhardt scientific drawings metynnis

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

jacques burkhardt scientific drawings emys

Emys rubriventris (side view) (January 1856), Jacques Burkhardt, 1856-01-??

jacques burkhardt scientific drawings emys

Geophagus brasiliensis (Rio Novo, Brazil, 3 July 1865), Jacques Burkhardt

jacques burkhardt scientific drawings geophagus

Layia clathrata and two anatomical cross sections (Charleston, South Carolina, 26 January 1852), Jacques Burkhardt

jacques burkhardt scientific drawings 1852 in art

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

jacques burkhardt scientific drawings emys

Geophagus altifrons (adult and juvenile) (Maues, Brazil, December 1865), Jacques Burkhardt, 1865-12-??

jacques burkhardt scientific drawings geophagus

Gymnotus carapo (Lake January, Brazil, 1866), Jacques Burkhardt, 1866-??-??

jacques burkhardt scientific drawings gymnotus

Emys rubriventris (bottom view) (January 1856), Jacques Burkhardt, 1856-01-??

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

Laetacara thayeri (Lake January, Brazil, 16 November 1865), Jacques Burkhardt

jacques burkhardt scientific drawings laetacara

Ophiolepis elegans (Charleston, South Carolina, 30 January 1852?), Jacques Burkhardt

jacques burkhardt scientific drawings ophiolepis

Laetacara thayeri (Teffe, Brazil, 9 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings laetacara

Myleus sp. (Manaos, Brazil, 15 November 1865, and Lake January, Brazil, 26 October 1865; 3 pacus), Jacques Burkhardt

jacques burkhardt scientific drawings myleus

Emys elegans (side view) (Washington, Mississippi, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

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

jacques burkhardt scientific drawings emys

Emys rubriventris (top, side, and bottom views) (Washington, D.C., 24 May 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys concinna (side view of turtle and three views of its head) (December 1855), Jacques Burkhardt, 1855-12-??

jacques burkhardt scientific drawings emys

Emys elegans (bottom view) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys marginata (top and bottom views) (1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Emys floridana (side view and eye) (Mobile, Alabama, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

Mesonauta sp. (Lake January, Brazil, 29 October 1865), Jacques Burkhardt

jacques burkhardt scientific drawings mesonauta

Emys nigra Hall (top view) (Southern California, 1856), Jacques Burkhardt, 1856-??-??

jacques burkhardt scientific drawings emys

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