338 BIBLIOGRAPHY OF 



1892, pp. 65-71. — Ab.: Justs bot. Jahresber., Leipzig, xx, (1892) 1894, pp. 

 497-8. (8) Op. cit., xvii, 1892, pp. 173-9. (9) Op- cit., xvii, 1892, pp. 269-76. 

 (10) Op. cit., xviii, 1893, pp. 47-54. (11) Op. cit., xviii, 1893, pp. 367-74.— 

 Ab. : Justs bot. Jahresber., Leipzig, xxi, (1893) 1896, p. 364. (12) Op. cit., 

 xix, 1894, pp. 103-12.— Ab.: Bot. Centralbl., Cassel, lix, 1894, p. 186; Justs 

 bot. Jahresber., Leipzig, xxii, {1894) 1897, pp. 290-2. (13) Op. cit., xx, 1895, 

 pp. 104-10. — Ab. : Justs bot. Jahresber., Leipzig, xxiii, (1895) 1897, pp. 101-2. 

 (14) Op. cit., XX, 1895, pp. 139-49. (15) Op. cit., xxi, 1896, pp. 72-81. (16) 

 Op. cit., xxi, 1896, pp. 266-74. (17) Op. cit., xxii, 1897, pp. 154-65. 



2963. Insect relations of certain Asclepiads. (i) Op. cit., xii, 1887, pp. 207-16. (2) 



Op. cit., xii, 1887, pp. 244-50. 



2964. Flowers and Insects. Umbelliferae. Trans. Acad. Sci., St. Louis (Mo.), v, 1891, 



pp. 449-60. Asclepiadaceae to Scrophulariaceae. Op. cit., v, 1891, pp. 569-98. 

 — Ab. : Justs bot. Jahresber., Leipzig, xix, (i8gi) 1894. Labiatae. Op. cit., 

 vi, 1893, pp. 101-31.— Ab. : Justs bot. Jahresber., Leipzig, xxi, (1893) 1896, 

 pp. 363-4. Rosaceae and Compositae. Op. cit., vi, 1893, pp. 436-80. — Ab. : 

 Justs bot. Jahresber., Leipzig, xxii, (1894) 1897, p. 290; Bot. Centralbl., Cassel, 

 Ixiii, 1895, p. 326. 



2965. The philosophy of flower seasons, and the phaenological relations of the entomo- 



philous flora and the anthophilous insect fauna. Amer. Nat., Boston (Mass.), 

 xxix, 1895, pp. 97-117. — Ab. : Justs bot. Jahresber., Leipzig, xxiii, (1895) 1897, 

 p. 102. 



2966. Notes on bees, with descriptions of new species. Trans. Amer. Ent. Soc, Phila- 



delphia (Pa.), xxii, 1895, pp. 115-28. 



2967. Zygomorphy and its causes. Bot. Gaz., Chicago (111.), xiii, 1888, pp. 146-51, 



203-8, 224-30.— Ab.: Bot. Centralbl., Cassel, xxxvi, 1888, p. 264. 



2968. Fertilization of Calopogon parviflorus Lindl. Op. cit., xii, 1887, pp. 288-91. — Ab. : 



Bot. Centralbl., Cassel, xxxviii, 1889, p. 533. 

 ^ 2969. Effects of the wind on bees and flowers. Op. cit., xiii, 1888, pp. 33-4. — Ab.: 



Bot. Centralbl., Cassel, xxxviii, 1886, p. 534. 

 2970. Notes on the mode of pollination of Asclepias. Op. cit., xi, 1886, pp. 262-9. — 



Ab. : Bot. Centralbl., Cassel, xxxviii, 1889, pp. 597-601. 

 '' 2971. Insect relations of certain Asclepiads. Op. cit., xii, 1887, pp. 207-16, 244-50. — 



Ab. : Bot. Centralbl., Cassel, xxxviii, 1889, pp. 597-601. 



2972. The fertilisation of Flanders flowers. Op. cit., xx, 1895, pp. 375-8. 



2973. Contributions to an account of the ecological relations of the entomophilous flora 



and the anthophilous insect-fauna of the neighbourhood of Carlinville. Trans. 

 Acad. Sci., St. Louis (Mo.), vii, 1896, pp. 151-79. — Ab. : Bot. Centralbl., Cassel, 

 Ixx, 1897, pp. 96-7. 



2974. Descriptions of new species of. North American Bees. Trans. Amer. Ent. Soc, 



Philadelphia (Pa.), xviii, 1891, pp. 49-66. — Ab. : Justs bot. Jahresber., Leipzig, 

 xix, (1891) 1894, p. 428. 



2975. Harshberger on the origin of our vernal flora. Science, New York, New Ser., v, 



1895, pp. 371-5. — Ab. : Justs bot. Jahresber., Leipzig, xxiii, (1895) 1897, p. 102. 



2976. Flowers and Insects (18). Bot. Gaz., Chicago (111.), xxv, 1898, pp. 229-45. — 



Ab. : Bot. Centralbl., Cassel, Ixxxvii, 1901, p. 61; Justs bot. Jahresber., 

 Leipzig, xxvi, (1898) 1900, p. 421. 



2977. Flowers and insects (19) : — (i) Comparison of the genera of bees observed in 



Low Germany and in Illinois with the number of species of each and their 

 flower visits. (2) On the flower visits of oligotropic bees. (3) Competition 

 of flowers for the visits of bees. (4) On the influence of bees in the modifica- 

 tion of flowers. (5) On the supposed pollen-carrying apparatus of flies and 



