Charlotte Sophia of Mecklenburg-Strelitz

by Francesco Bartolozzi, published by Robert John Thornton, after Sir William Beechey
stipple engraving, published 1799
NPG D33078

Thomas Martyn with 'View of King's College Chapel, the Public Library and Senate House'

by Giovanni Vendramini, published by Robert John Thornton, after John Russell
stipple engraving, published 1 June 1799
NPG D34336

Sir John Hill with 'A View of the Royal Palace in Kew Gardens'

by Giovanni Vendramini, published by Robert John Thornton, after Francis Cotes
stipple engraving and etching, published 1 November 1799
NPG D34343

Sir John Hill with 'A View of the Royal Palace in Kew Gardens'

by Giovanni Vendramini, published by Robert John Thornton, after Francis Cotes
stipple engraving and etching, published 1 November 1799
NPG D35831

Sir James Edward Smith with 'The Pursuit of the Shop containing the Linnaean Collection'

by William Ridley, published by Robert John Thornton, after John Russell
stipple and line engraving, published 25 March 1800
NPG D34334

Stephen Hales

by William Hopwood, published by Robert John Thornton, after Thomas Hudson, and after Coates
stipple engraving and etching, published 1 December 1800 (circa 1759)
NPG D34344

Nehemiah Grew with 'Gresham College, where the first Meetings of the Royal Society were held'

probably by James Newton, published by Robert John Thornton, after Robert White
stipple engraving and etching, published 1 November 1800
NPG D34354

'Philosophers of the last Century' (John Mayow; John Evelyn)

by James Caldwall, published by Robert John Thornton
line engraving and etching, published 20 December 1800
NPG D34358

Nehemiah Grew with 'Gresham College, where the first Meetings of the Royal Society were held'

probably by James Newton, published by Robert John Thornton, after Robert White
stipple engraving and etching, published 1 November 1800
NPG D34946

Stephen Hales

by William Hopwood, published by Robert John Thornton, after Thomas Hudson, and after Coates
stipple engraving and etching, published 1 December 1800 (circa 1759)
NPG D35209

Stephen Hales

by William Hopwood, published by Robert John Thornton, after Thomas Hudson, and after Coates
stipple engraving and etching, published 1 December 1800 (circa 1759)
NPG D35210

Jean Jacques Rousseau with 'The Tomb of Jean Jaque Rousseau'

by James Caldwall, published by Robert John Thornton, after Allan Ramsay
stipple engraving and etching, published 1 July 1801
NPG D34340

William Withering with 'Dr Withering analysing the Queen's Bath at the request of the Court of Portugal'

by William Ridley, published by Robert John Thornton, after Carl Frederik von Breda
stipple engraving and etching, published 15 November 1801
NPG D34347

'Chemical Philosophers of the present Day' (Joseph Priestley; Antoine Lavoisier)

by James Caldwall, after John Opie, and after Jacques Louis David, published by Robert John Thornton
line engraving and etching, published 1 May 1801
NPG D34359

William Withering with 'Dr Withering analysing the Queen's Bath at the request of the Court of Portugal'

by William Ridley, published by Robert John Thornton, after Carl Frederik von Breda
stipple engraving and etching, published 15 November 1801
NPG D37069

Charles Bonnet

by James Caldwall, published by Robert John Thornton
stipple engraving and etching, published 1 May 1802
NPG D34345

William Curtis with 'The Frontispiece to Mr Curtis' Flora Londinensis'

by William Evans, published by Robert John Thornton
stipple engraving and etching, published 1 March 1802
NPG D34348

Joseph Pitton de Tournefort with 'A Zephyr disclosing to an astonished world, the System of Tournefort'

by William Hopwood, published by Robert John Thornton
stipple engraving and etching, published 1 August 1802
NPG D34355

William Curtis with 'The Frontispiece to Mr Curtis' Flora Londinensis'

by William Evans, published by Robert John Thornton
stipple engraving and etching, published 1 March 1802
NPG D34478

Antoine de Jussieu with 'View of the Thuilleries at Paris'

by William Evans, published by Robert John Thornton, after Charles Thevenin, and after Thomas Girtin
stipple engraving and etching, published 1 March 1803
NPG D34339