268 BIBLIOGRAPHY OF 
1335. Harriman Alaska Expedition. XXVIII. Hymenoptera. By W. H. Ashmead. 
[New Apidae from Alaska,—Bombus neglectulus, B. mackayi, B. alaskensis, 
B. mixtuosus, B. dimidiatus, Psithyrus kodiakensis: also twelve species of 
Bombus, one of Psithyrus, and one of Andrena, previously described.] - Proc. 
Nation. Acad. Sci., Washington (D.C.), iv, 1902, pp. 117-274. 
1336. Harris, J. A., and Kucks, O. M. Observations on the Pollination of Solanum 
rostratum Dun, and Cassia Chamaecrista Z. Bull. Sci. Kansas Univ., 
Topeka, i, 1902, pp. 15-41. 
1337. Harrison, Leslie. Cultivation of Rice in the United States. Bull. Jamaica Agric. 
Dept., 1903, pp. 175-81. Reprinted from Forest. Irrig., Washington (D.C.), 
ix, 1903. 
1338. Harshberger, John W. The origin of our vernal Flora. Science, New York, New 
Ser., i, 1894, pp. 92-8.—Ab.: Justs bot. Jahresber., Leipzig, xxii, (1894) 1897, 
p- 275; Bot. Centralbl., Cassel, Ixii, 1895, p. 120. 
1339. James Logan, an early contributor to the doctrine of sex in plants. Bot. Gaz., 
Chicago (IIl.), xix, 1894, pp. 307-12.—Ab. : Justs bot. Jahresber., Leipzig, xxii, 
(1894) 1897, p. 275. 
1340. Statistical information concerning the production of fruits and seeds in certain 
plants. Pub. Univ. Pa., Ser. Bot., Philadelphia (Pa.), New Ser., ii, 1898, 
Pp. 100-9. 
1341. A few ecological Notes. Asa Gray Bull., Takoma Park (D.C.), vi, 1898, 
Ppp. 37-9.—Ab.: Justs bot. Jahresber., Leipzig, xxvi, (1898) 1900, p. 403. 
1342. The Botanists of Philadelphia and their work. Philadelphia (Pa.), 1899. 
1343. A study of the fertile hybrids produced by crossing teosinte and maize. 
[Euchlaena mexicana, Zea Mays.] Pub. Univ. Pa., Ser. Bot., Philadelphia 
(Pa.), New Ser., ii, 1901, pp. 231-5. 
1344. The limits of variation in plants. Proc. Acad. Nat. Sci., Philadelphia (Pa.), 
lili, 1901, pp. 303-19. 
1345. An ecological Sketch of the Flora of Santo Domingo. Op. cit., liii, 1901, 
Pp. 554-61. 
1346. Maize: a botanical and economic Study. Cont. Bot. Lab., Univ. Pa., Phila- 
delphia (Pa.), 1893, pp. 75-202.—Ab.: Bot. Gaz., Chicago (lIIl.), xix, 1894, 
p. 44. 
1347. Hart, J. H. Self-fertilisation of Epidendron variegatum. Gard. Chron., London, 
New Ser., xxvi, 1886, p. II. 
1348. Irritability of the Flowers of Catasetum tridentatum Hook. Bull. Miscell. 
Inform. R. Bot. Gard., Trinidad, ii, 1896, pp. 225-9.—Ab.: Bot. Gaz., Chicago 
(Ill.), xxii, 1896, p. 505; Justs bot. Jahresber., Leipzig, xxiv, (1896) 1899, 
Pp. 137. 
1349. Bats fertilising the flowers of Bauhinia megalandra Gr7sed. (n. sp.). Bull. Miscell. 
Inform. R. Bot. Gard., Trinidad, iii, Part 2, No. 10, April, 1897, pp. 30-1. 
1350. Hart, W. E. Fertilisation of Polygala. Nature, London, ii, 1870, p. 274. 
1351. Cross-Fertilisation (Lobelia). Op. cit., ii, 1870, p. 355. 
1352. Winter-Fertilisation. J. Bot., London, Ser. 2, ii, 1872, pp. 25-6. 
1353. ‘Fertilisation of the Hazel. Op. cit., ii, 1872, p. 110. 
1354. Fertilisation of the Wild Pansy. Nature, London, viii, 1873, p. 121. 
1355. Ground Ivy. Op. cit., viii, 1873, p. 162 
1356. Fertilisation of Viola tricolor and V. cornuta. Op. cit., viii, 1873, pp. 244-5. 
1357. ‘Fertilisation of Corydalis claviculata. Op. cit., x, 1874, p. 5. 
1358, Hartley, C. P. Injurious Effects of premature Pollination, with general Notes on 
artificial Pollination and the Setting of Fruit without Pollination. [Nicotiana 
Tabacum, Datura Tatula, Solanum Lycopersicum, Gossypium, Citrus auran- 
