250 BIBLIOGRAPHY, BIOGRAPHY, HISTORY [Box. Absts., Vol. VIII, 



zuela chronologically, beginning with Peter Loefling, who collected in 1754, N. J. von 

 Jacqtjin, Humboldt, Schombxjrgk, Karsten, Preuss, and others, and concludes the work 

 with a short bibliography on Venezuelan botany. — P. G. Russell. 



1757. Prain, David. Anne Casimir Pyramus de Candolle. Proc. Linn. Soc. London 

 131: 51-52. 1919. — Personal appreciation of Casimir de Candolle, born Feb. 26, 1836, died 

 Oct. 3, 1918.— M. F. Warner. 



1758. Pringsheim, Hans, und E. G. Pringsheim. Wilhelm Pfeffer. Ber. Deutseh. 

 Chem. Ges. 53: 36-39. 1920.— Obituary of PfeiTer (born March 9, 1845), with an estimate of 

 his work as a physiologist. — Neil E. Stevens. 



1759. R[amsbottom], J[ohn]. John Snell. Jour. Botany 58: 158. 1920. — John Snell, 

 whose death occurred at Preston, April 19, 1920, in his 42d year, was known in connection 

 with the Ormskirk potato trials, testing varieties with reference to wart disease {Chryso- 

 phlyctis endobiotica) . — M. F. Warner. 



1760. Reddick, D. New abstract journal. Phytopathology 11: 29. 1921. — The appear- 

 ance of Zentralblatt f iir die gesamte Landwirtschaf t mit Einschluss der Forst- und Teichwirt- 

 schaft, der Tier-Pathologie, und Medizin from the press of Gebriider Borntraeger, Berlin, 

 is noted. — B. B. Higgins. 



1761. RiDDELL, W. R. The pharmacopoeia of another botanical physician. Trans, and 

 Proc. Bot. Soc. Edinburgh 28: 1-23. 1920. — Plants employed by Samuel B. Emmons in his 

 Vegetable family Physician (Boston, 1836). — M. F. Warner. 



1762. Ritter, Georg. Friedrich Ludwig. Beih. Bot. Centralbl. 36 (I. Abt.): 133-134. 

 1919.— Friedrich Ludwig was born Oct. 24, 1851, died July 22, 1918.— A^ezZ E. Stevens. 



1763. Rivera, Vincenzo. Giuseppe Cuboni. Riv. Biol. 2: 693-696. Portrait. 1920.— 

 Cuboni was born at Modena Feb. 2, 1852, and died at Rome, Nov. 3, 1920. He brought a 

 broad culture and enthusiasm to the solution of agricultural problems, and was instrumental 

 in the development of many economic projects. His immediate personal researches were 

 chiefly along phytopathological lines, and he stimulated valuable work on the part of his 

 associates. — M. F. Warner. 



1764. [Roberts, J. W.] Dr. S. M. McMurran. Amer. Nut. Jour. 13: 71. 1920.— Stock- 

 ton Mosby McMurran, born March 8, 1887; died September 5, 1920. Several of his phyto- 

 pathological articles are noted. — M. F. Warner. 



1765. Roberts, W. American plants in England. Gard. Chron. Ill, 67: 52. 1920.— 

 Advertisements of seeds and plants, chiefly from newspapers. An anonymous communication 

 in Gentleman's Magazine, Dec. 1751, is mentioned, concluding with Seeds Arrived this Year 

 from our North American Colonies, an extensive list quoted in full, under vernacular names 

 probably at that time in use in North America, comprising trees, ornamental shrubs, and 

 vines. Particular mention is made of a 12-page catalogue of William Wright of Edinburgh, 

 advertising American trees collected in Canada by his brother John, who was said to have 

 previously printed at London a catalogue comprising nearly 600 different kinds; but this has 

 not been traced. Other London seedsmen offering American plants and seeds are mentioned. 

 The most popular plant imported seems to have been the American aloe. — M. F. Warner. 



1766. Roberts, W. A forgotten botanical artist: Miss Crabtree. Gard. Chron. Ill, 67: 

 278. 1920. — Drawings made in the 18th century by Philippa Crabtree, who may have been 

 the child of this name, born to John and Philippa Crabtree, Nov. 17, 1764. She sent to the 

 Royal Academy in 1786 and 1787 three exhibits entitled "Flowers from Nature." Query: Is 

 it not likely that she drew some of the unsigned plates in early volumes of the Botanical 

 Magazine? Drawings by Mary Ann and Elizabeth Crabtree, 1816 to 1822, are also noted. 

 — M. F. Warner. 



