412 POPULAR SCIENCE MONTHLY. 



States, not to speak of recent annexations. I am much disposed to 

 think so. The U. S. Department of Agriculture has, with commend- 

 able enterprise, recently undertaken the introduction of date palms 

 into Arizona and California,* and there can scarcely be any doubt 

 of the ultimate success of the effort. There are many other palms 

 that will thrive in a climate where dates can be grown. 



Literature. — For the benefit of those who may wish further and 

 more detailed information regarding palms a list of the most im- 

 portant works on the subject is appended; a few other titles are men- 

 tioned in the foot-notes. 



1. Voyage dans I'Am^rique m^ridionale, etc., Par Aleide D'Orbigny, Tome 

 septifeme, 3e partie. Palmiers. Descriptio palmarum in Paragueria et Bolivia 

 crescentium . . . schedulas et incones digesit. Car. Fr. Ph. De Mar- 

 tins, pp. 140 and atlas of colored plates. Paris et Strasbourg, 1847. 



2. Historia naturalis palmarum. Auctor C. F. P. de Martius. 3 vols, 

 folio. Leipzig, n. d. 



3. Palms of British East India. By William Griffith. Calcutta, 1850, folio. 



4. Palm Trees of the Amazon and their Uses. By Alfred R. Wallace. 48 

 plates, 129 pp., London, 1853. 



5. Popular History of the Palms and their Allies. By Berthold Seeman. 

 xvi + 359, III., London, 1856. 



6. Palmae mattogrossenses novae vel minas cognitse quas collegit descripsit 

 et iconibus illustravit. J. Barbosa Rodriguez, xx + 92, 27 plates. Rio de 

 Janeiro, 1898. 



7. Palmae novae Paraguayenses quas descripsit et iconibus illustravit J. 

 Barbosa Rodriguez, ix + 66, 6 plates, Rio de Janeiro, 1899. 



8. Flora Brasiliensis. Fasciculus 55, Palmae. Exposuit Oscar Drude. 

 Lipsiae, 1881. 



9. Palmae Amazonicae sive enumeratio palmarum in itinere suo per regionea 

 Americae aequetoriales lectarum. Auctor Ricardo Spruce. Read Jan. 21, 1869. 

 Proc. Linn. Society, XL, 65, 183. 



10. New Palms collected in the Amazon valley in 1874. By James W. H. 

 Trail. 'Journal of Botany,' Nov. and Dec, 1876, Jan., Feb. and Mar., 1877. 



11. The origin and distribution of the cocoa palm. By O. F. Cook. Con- 

 tributions from the U. S. Nat. Herbarium. Vol. VII., pp. 257-293. Washing- 

 ton, 1901. 



^ P . 



♦ 'The Date Palm and its Culture.' By Walter T. Swingle. Yearbook of 

 the U. S. Department of Agriculture for 1900, pages 453-490. Washington, 1901. 



