FLOWER POLLINATION 337 



2938. The Rose Chafer. [Injurious visits to flowers of Macrodactylus subspinosus F. 



Bull. U.S. Dept. Agric, Div. Ent., Washington (D.C.), ii, 1890, pp. 295-302. 



2939. Bees. Op. cit., vi, 1894, pp. 350-60. 



2940. Some entomological problems bearing on Califomian pomology : Caprification. 



Amer. Pomol. Sec, Los Angeles, 1895. * 



2941. Further Remarks on Pronuba Yuccasella and the pollination of Yucca. Trans. 



Acad. Sci., St. Louis (Mo.), iii, 1878, pp. 568-73. 



2942. Further Notes on the Pollination of Yucca and on Pronuba and Prodoxus. Proc. 



Amer. Ass. Adv. Sci., Salem, (1880) 1881, pp. 617-39. 



2943. The True and Bogus Yucca-moth, with remarks on the Pollination of Yucca. 



Amer. Entomol., Brooklyn, i, 1880, pp. 141-5. 



2944. Observations on the fertilisation of Yucca and on structural and anatomical 



pecuHarities in Pronuba and Prodoxus. Amer. Nat., Boston (Mass.), xvii, 1883, 

 p. 197. 



2945. Pronuba and fertilisation of Yucca. Amer. Entomol., Brooklyn, v, 1 887, pp. 233-6 ; 



id., 1887, pp. 107-8. 



2946. Some interrelations of Plants and Insects. Proc. Biol. Soc, Washington (D.C.), 



vii, 1892-3, pp. 81-104. 



2947. The Yucca moth and Yucca pollination (l). Bot. Card. Rep., St. Louis (Mo.), 



iii, 1892, pp. 99-158. — Ab.: Bot. Centralbl., Cassel, Iii, 1892, pp. 267-71 ; Justs 

 bot. Jahresber., Leipzig, xx, (1892) 1894, pp. 496-7. 



2948. La fertilisation des fleurs. Rev. sci., Paris, 1, 1892, pp. 431-4. 



2949. The fertilisation of the Fig and Caprification. Bot. Gaz., Chicago (III.), xvii, 



1892, p. 281. — Ab. : Jiiists bot. Jahresber., Leipzig, xx, (1892) 1894, p. 496. 



2950. Further Notes on Yucca Insects and Yucca Pollination. Bull. U.S. Dept. Agric, 



Div. Ent., Washington (D.C.), v, 1893, pp. 300-13. 



2951. Further Notes on Yucca Insects and Yucca Pollination. Proc. Biol. Soc, 

 , Washington (D.C.), viii, 1893-5, PP- 41-53- 



2952. The fertilization of the Fig and Caprification. Proc. Amer. Ass. Adv. Sci., Salem, 



xli, 1892, pp. 214-6. — Ab. : Justs bot. Jahresber., Leipzig, xxi, (1893) 1896, 

 P- 363- 



2953. Simpau, "W. Die Ziichtung neuer Getreide-Varietaten. Landw. Jahrb., Berlin, vi, 



1877, pp. 199-233- 



2954. Die Selbststerilitat des Roggens. Op. cit., vi, 1877, pp. 1073-6. 



2955. Das Bliihen des Getreides. Op. cit., xii, 1883, pp. 875-919. 



2956. Die Kreuzung als Mittel zur Erzeugung neuer Varietaten von landwirtschaft- 



lichen Kulturpflanzen. Tagebl. d. 57. Vers. D. Naturf., Magdeburg, 1884, p. 179. 

 — Ab. : Bot. Centralbl., Cassel, xx, 1884, pp. 219-24, 253-5. 



2957. Rippa, G. Osservazioni biologiche suU' Oxalis cernua. [Pollination experiments 



on the three forms of the heterostylous flowers.] Boll. Soc. nat., Napoli, xvi, 

 1902, pp. 230-7. — Ab. : Bot. Centralbl., Cassel, xciii, 1903, p. 85. 



2958. Rivera, Manuel J. Empolvoramiento de algunas especies del genero Loasa. 



[Pollination of species of Loasa by Hymenoptera.] Santiago, 1899. 



2959. Riville, Godeheu de. Mdmoire sur la caprification. Mdm. Acad, sci., Paris, ii, 



1755, PP- 369-77- 



2960. Roberts, C. Destruction of Flowers by Birds. Nature, London, xi, 1875, p. 446. 



2961. RobertBon, Charles. Proterogynous Umbelliferae. Bot. Gaz., Chicago (111.), xiii, 



1888, p. 193. 



2962. Flowers and Insects. (l) Op. cit., xiv, 1889, pp. 120-6. (2) Op. cit., xiv, 1889, 



pp. 172-8. (3) Op. cit., xiv, 1889, pp. 297-304. (4) Op. cit., XV, 1890, pp. 79- 

 84. (5) Op. cit., XV, 1890, pp. 199-204. (6) Op. cit., xvi, 1891, pp. 65-71.— 

 Ab. : Justs bot. Jahresber., Leipzig, xix, (1891) 1894, p. 428. (7) Op. cit., xvii, 



DAVIS 2 



