Spörer, F. H. Dates of birth and death: 1740 c. - 1785 fl.
Also known as: F. H. S. ; Spörer / Spoerer / Sporer ; Worked for: Friedrich Wilhelm Heinrich von Trebra (1740-1819): Erfahrvngen Vom Innern Der Gebirge (Dessau 1785, also including a: Situations-Charte der Gegend um Clausthal und Zellerfeld) ;
Spöring, Herman Diedrich Dates of birth and death: 1733 in Turku - 1771
Also known as: H. D. S. ; Spoering Jr. ;Worked for: Swedish naturalist Daniel Solander (1733-1782) ; Sir Joseph Banks (1743-1820) ; James Cook (1728-1779): Charts, Plans, Views and Drawings taken on board His Majesty’s Bark Endeavour in the years 1768, 1769 and 1770 ;
Sprague, Isaac Dates of birth and death: 1811 in Hingham, Massachusetts - 1895
Also known as: I. S. ; no to mixed up with Isaac W. Sprague (1841-1887), the 'living skeleton' ;Worked for: J. Audubon (Missouri Riv exped.) ; botanist John Torrey, botanist William Oakes & Asa Gray: U.S. Exploring Expedition 1838-42 (volume XV Botany Phanerogamia, atlas 1857; Genera of Plants of US 1848-9; Chloris Boreali Americana 1848; GL Goodale: Wild Flowers America 1886 ; Boston Journal of Natural History (Boston 1834-1837/63)
Sprague, H. S. Dates of birth and death: 1876 fl. -
Also known as: H. S. S. ; possibly Hezekiah S. Sprague, who worked in Newark, USA, c. 1840-1865: www.smpub.com/ubb/Forum19/HTML/000412.html ;Worked for: Alpheus Spring Packard (1839-1905) ;
Sprague, Robert W. Dates of birth and death: 1883 fl. - 1898 fl.
Also known as: R. W. S. ; Sprague & Co ;Worked for: Edward A. Cowper: On the inventions of James Watt and his models, Proceedings of the Institution of Mechanical Engineers 34 (1883: plate 56) ;
Spratt, George Dates of birth and death: 1784 c. - 1840 c.
Also known as: G. S. ;Worked for: John Stephenson (1790-1864) & James Morss Churchill (1796-1863) ; A Table of Vegetable Poisons (1843) ; Flora Medica (1829-30) ; William Woodville: Medical Botany (1832) ; G. Spratt: Flora Medica (1830) & Obstetric Tables (1833) ;
Spratt, Julia ° Dates of birth and death: 1800 c. in London? -
Also known as: J. S. ;Worked for: illustrator George Spratt (c. 1784- c.1840) (father) ; Mrs. George Spratt (17xx-18xx) (mother) ;
Spratt, Mrs. ° Dates of birth and death: 1829 fl. - 1837 fl.
Also known as: Mrs. George Spratt ; Worked for: George Spratt: Flora Medica (1829-30) & Obstetric Tables (1833) ; Mrs. G. Spratt: Language of Birds (1837) ;
Sprengel, Christian Conrad Dates of birth and death: 1750 in Brandenburg an der Havel - 1816
Also known as: C. C. S. ; Christian Konrad Sprengel ;Worked for: Das entdeckte Geheimnis der Natur im Bau und in der Befruchtung der Blumen (Berlin 1793) ;
