FLOWER POLLINATION 261 
1167. Graber, V. Grundlinien zur Erforschung des Helligkeits- und Farbensinnes der — 
1168. 
1169. 
1170. 
1171. 
1172 
1173. 
1174. 
1175. 
1176. 
Tiere. Prag and Leipzig, 1884. 
Ueber das unicorneale Tracheaten-, und speciell das Arachnoideen- und Myrio- 
poden-Auge. Arch. mikr. Anat., Bonn, xvii, 1880, pp. 58-94. 
Sir John Lubbock’s Observations on Ants, Bees, and Wasps. Biol. Centralbl., 
Erlangen, ii, 1882, pp. 109-17. 
Fundamentalversuche iiber die Helligkeits- und Farbenempfindlichkeit augen- 
loser und geblendeter Tiere. SitzBer. Ak. Wiss., Wien, lxxxvii, 1883, Abth. i, 
pp. 201-36. 
Neue Versuche iiber die Funktion der Insektenfiihler. Biol. Centralbl., Erlangen, 
vii, 1888. 
. Graebner, P. Kleistogamie. Verh. bot. Ver., Berlin, xxxv, (1893) 1894, 
p. 148. 
Biologische Notizen. Op. cit., xxxv, (1893) 1894, pp. 148-57.—Ab.: Justs bot. 
Jahresber., Leipzig, xxii, (1894) 1897, p. 274. 
Insektenfang von Symphytum officinale. Op. cit., xxxvi, 1895, p. 22. 
Typhaceae [including pollination, p. 6]. In Engler’s Pflanzenreich, Heft 2. 
Leipzig, 1900. 
Sparganiaceae [including pollination, p. 7]. Op. cit., Heft 2. Leipzig, 1900. 
1177. Graenicher, 8. The Fertilisation of Symphoricarpos and Lonicera. Bull. Wis. 
1178. 
1179. 
1180. 
1181. 
Nat. Hist. Soc., Milwaukee, New Ser., i, 1900, pp. 141-56. 
The Fertilization and Insect-Visitors of our earliest entomophilous flowers, Op. 
cit., i, 1900, pp. 73-84. 
The last anthophilous insects of the season. Op. cit., i, 1900, pp. 187-9. 
The Syrphidae of Milwaukee County. [Numerous facts regarding flower-visits.] 
Op. cit., i, 1900, pp. 167-77. 
Flowers adapted to flesh-flies. Op. cit., ii, 1902, pp. 29-38.—Ab.: Bot. Centralbl., 
Cassel, xc, 1902, pp. 609-10. 
1182. Grassmann, P. Die Septaldriisen. Ihre Verbreitung, Entstehung und Verrichtung. 
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1183. Graves, Jas. A. A problem in pollination. Asa Gray Bull., Takoma Park (D.C.), 
v, 1897, p. 46. 
1184. Gray, Asa. Notes of a Botanical Excursion to the Mountains of North Carolina, 
1185. 
1186. 
1187, 
1188. 
1189. 
1190. 
1191, 
1192. 
1193. 
&c., with some remarks on the botany of the higher Alleghany mountains. 
[Heterostyly of Hedyotis purpurea.] Amer. J. Sci., New Haven (Conn.), xlii, 
1842, pp. 1-49; J. Bot., London, i, 1842, pp. I-14, 217-37; ii, 1843, 
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pp. 22-70. 
Review of Darwin’s Fertilisation of Orchids. Amer. J. Sci., New Haven (Conn.), 
Ser. 2, xxxiv, 1862, pp. 138-44. 
Enumeration of Plants of the Rocky Mountains. Op. cit., xxxiv, 1862, p. 33. 
Dimorphism in the Genitalia of Flowers. Op. cit., xxxiv, 1862, pp. 419, 420; 
J. Bot., London, i, 1863, pp. 147-9. 
Fertilisation of Orchids through the Agency of Insects. Op. cit., xxxiv, 1862, 
PP. 420-9. 
Structure and Fertilization of certain Orchids. [Plantanthera (Habenaria) flava 
and Gymnadenia tridentata.] Op. cit., xxxvi, 1863, pp. 292-4. 
Morphology of Stamens and use of aborted Organs. Op. cit., xliii, 1867, pp. 273-4. 
Botanical Notes and Queries. [Pollination mechanism of Clerodendron Thomp- 
sonae.] Amer. Nat., Boston (Mass.), i, 1868, pp. 493-4. 
Cross-fertilisation of Scrophularia nodosa. J. Bot., London, ix, 1871, p. 375. 
Botany for Young People. Part II. How Plants behave. New York, 1872. 
