Vol. I] STEWART— BOTANY OF THE GALAPAGOS ISLANDS 247 



(2). Journal of Researches into the Natural History and Geology of 

 the Countries visited during the Voyage of H. M. S. Beagle 

 round the World, under the Command of Capt. Fitz Roy, R. N., 

 vol. 2, 1846, pp. 138-176. 

 Douglas, David. 



(1). A Sketch of a Journey to the Northwestern Parts of the Con- 

 tinent of North America, during the Years 1824, 5, 6, and 7. 

 Comp. Bot. Mag., vol. 2, 1836, pp. 86-87. 

 Du Petit Thouars, Abel. 



(1). Voyage autour du Monde sur la Fregate "La Venus" pendant les 

 annees 1836-1839. Paris, vol. 2, 1840-1849, pp. 279-322. 

 Ehrenberg, Christian Gottfried. 



(1). Das Jetzige Mikroscopische Siisswasserleben der Galapagos-In- 

 seln. Bericht Akad. Berlin, 1853, pp. 178-179. 



(2). Die Organische Mischung der Vulkanischen Gebirgsarten beson- 

 ders des Palagonits auf den Galapagos-Inseln. Op. c. pp. 180- 

 182 (with unnumbered table). 

 Engler, Adolf. 



(1). Versuch einer Entwicklungsgeschichte der Pflanzenwelt inbeson- 

 dere der Florengebiete seit der Tertiarperiode, vol. 2, 1882, p. 

 180. 

 Evans, Alexander William. 



(1). Hepaticae, in Robinson's Flora of the Galapagos Islands. Proc. 

 Am. Acad., vol. 38, 1902, no. 4, pp. 100-101. 

 Farlow, William Gilson. 



(1). Fungi, in Robinson, op. c, pp. 82-83. 



(2). Lichens, op. c, pp. 83-89. 



(3). Algae, op. c, pp. 89-99. 



(4). Musci, op. c, pp. 102-104. 

 Hemsley, William Botting. 



(1). Report on Present State of Knowledge of Various Insular Floras, 

 being an Introduction to the Botany of the Challenger Expedi- 

 tion. Botany of Challenger, vol. 1, 1885> pp. 10, 19. 



(2). The Flora of the Galapagos Islands. Nature, vol. 52, 1895, p. 623. 



(3). Cactaceae in the Galapagos Islands. Nature, vol. 53, 1895, pp. 31, 

 249. 



(4). Insular Floras. Science Progress, vol. 1, 1894, pp. 400-401 ; vol. 5, 

 1896, pp. 298-302. 



(5). The Cactaceae of the Galapagos Islands. Card. Chron. ser. 3, 

 vol. 24, 1898, p. 265, fig. 75. 



(6). The Vegetation of the Galapagos Islands. Card. Chron. ser. 3, 

 vol. 27, 1900, p. 177, figs. 56, 61. 



(7). Cactaceae of the Galapagos Islands. Card. Chron. ser. 3, vol. 28, 

 1900, p. 7. 



(8). Opuntia Myriacantha. Card. Chron. ser. 3, vol. 28, 1900, p. 220. 



(9). In Hook. Icones Plantarum, vol. 28, 1901, t. 2715-2719. 



(10). The Flora of the Galapagos Islands. Card. Chron. ser. 3, vol. 32, 

 1902, p. 469. 



January 16. 1911 



