3o8 BIBLIOGRAPHY OF 



2248. Observations on Lilies. Proc. Acad. Nat. Sci., Philadelphia (Pa.), xxvii, 1875, 



pp. 412-3. 



2249. Are Insects a material Aid in Fertilization ? Garden, London, x, 1876, pp. 493-4. 



2250. Self-fertilization in Browallia elata. Proc. Acad. Nat. Sci., Philadelphia (Pa.), 



1876, p. 13. 

 225L The Sleep of Plants as an Agent in Self-fertilization. [Claytonia, Ranunculus.] 

 Op. cit., 1876, p. 84. 



2252. Fertilization of Flowers by Insect Agency. [Scrophularia, Taraxacum, Chrysan- 



themum, Trifolium, Staphylea.] Op. cit., 1876, p- 108. 



2253. Natural Flowering of Mentzelia ornata. Op. cit., 1876, p. 173. 



2254. Self-fertilization in Mentzelia ornata. Op. cit., 1876, p. 202. 



2255. Self-fertilization of Plants. Nature, London, xiv, 1876, pp. 475-6; xv, 1877, p. 138. 



2256. On Self-fertilization and Cross-fertilization in Flowers. The Pennsylvania 



Monthly, Philadelphia (Pa.), vii, 1876, p. 284. Amer. Ass. Adv. Sci., Salem, 

 1876, p. 253. Ab. : Card. Chron., London, New Sen, vi, 1876, p. 398. 



2257. Cross-fertilization in Campanula. Proc. Acad. Nat. Sci., Philadelphia (Pa.), 1876, 



p. 142. Ab. : Nature, London, xv, 1877, P- 168. 



2258. Fertilization in Beans. Op. cit., 1876, p. 193. Ab. : Card. Monthly, Philadelphia 



(Pa.), xix, 1877, pp. 55-6. 



2259. Influence of Nutrition on Fertilization. Op. cit., 1877, p. 128. Ab. : Nature, 



London, xvi, 1877, P SM- 



2260. Sensitive Stamens in Purslane (Portulaca oleracea). Op. cit., 1877, p. 287. 

 226L Dimorphism in Ailanthus glandulosa. Op. cit., 1877, pp. 287-8. 



2262. On Sex in Flowers. Proc. Amer. Ass, Adv. Sci., Salem, xxvi, 1877, p. 315. 

 2268. Darwin on Fertilization of Flowers by Insects. Pennsylvania Monthly, Phila- 

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2264. The Table-mountain Pine (Pinus pungens Mchx.). Rep. Pa. Fruit Growers Soc, 



Kew Hort. Soc, 1877. 



2265. Varying Experiences. [Stellaria, Draba, Capsella, Salvia.] Nature, London, xviii, 



1878, p. 334. 



2266. Note on Calycanthus floridus. Proc. Acad. Nat. Sci., Philadelphia (Pa.), (1878) 



1879, p. 38. 



2267. Notes on Acer rubrum. Op. cit., (1878) 1879, pp. 123-3 5 Nature, London, xix, 



1878, p. 387. 



2268. Irritable or sensitive Stamens. Op. cit., (1878) 1879, pp. 333-4. 



2269. Dimorphism in Mitchella repens. Op. cit., (1878) 1879, p. 333. 



2270. Boring of corollas from the outside by honey-bees. Op. cit., 1878, p. 10. Ab. : 



Justs bot. Jahresber., Leipzig, vii, (1879) 1883, p. 148. 

 227L The law governing sex. Op. cit., (1878) 1879, pp. 267-8. 



2272. On sex in Castanea americana. Op. cit., (1879) 1880, pp. 165-7. 



2273. On Nutrition in its Relation to the Fertilization of Flowers. J. Bot,, London, 



New Ser., viii, 1879, P- 285. 



2274. On the Fertilization of Yucca. Amer, Entomol., Brooklyn, i, 1879, P- 33- 



2275. Dimorpho-dichogamy in Juglans and Carya. Bot, Gaz., Chicago (111,), v, 1880, 



p, II. 



2276. Bees and Flowers. BuU.Torrey Bot. CI., New York, vii, 1880, p. 66. 



2277. Dimorphic Flowers in Houstonia. Proc. Acad. Nat, Sci., Philadelphia (Pa,)^ 



(1880) i88i,p. 349. 



2278. Cleistogamy in Oxalis acetosella. Op. cit., (1880) 1881, p. 350. 



2279. Dioecism in Andromeda Catesboei. Op. cit., (1880) 1881, p. 356. 



2280. Changes of Flowers normally of one Sex to the other. Op. cit., (1880) 1881, 



PP- 353 354- 



