FLOWER POLLINATION 235 
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558, 
559. 
560. 
561 
562 
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Gli Apidi pronubi della Brassica oleracea Z. Abh. ZoolBot. Ges., Wien, xl, 
1890, pp. 161-4.—Ab.: Bot. Centralbl., Cassel, xliii, 1890, pp. 263-4. 
Osservazioni sulla fioritura e fecondazione della Primula acaulis Jacg. Op. cit., 
xlii, 1892, pp. 73-8.—Ab.: Justs bot. Jahresber., Leipzig, xx, (1892) 1894, p. 475. 
Osservazioni sulla fioritura e sui pronubi di alcune piante. Nuovo Giorn. bot. ital., 
Firenze, xxv, 1893, pp. 6-15. 
. Cocconi, G. Contributo allo studio dei nettari mesogamici delle Caprifogliacee. 
Mem. Acc. sc., Bologna, Ser. 4, ix, 1888, pp. 279-85. 
. Cockayne, L. Description of new species of Astelia, Veronica, and Celmisia. [Visits 
of Flies to Astelia.] Trans. and Proc. N. Zeal. Inst., Wellington, xxxi, 1899, 
Pp- 419-24. 
563. Cockerell, T. D. A. Insects attracted by Solanum in New Mexico. Nature, 
564, 
565. 
566. 
567. 
568. 
569. 
570. 
571, 
572. 
573. 
574, 
575. 
576, 
577. 
London, xlviii, 1893, p. 438.—Ab.: Justs bot. Jahresber., Leipzig, xxi, (1893) 
1896, p. 340. 
The alpine flora; with a suggestion as to the origin of blue in flowers. Nature, 
London, xliii, 1891, p. 207.—Ab.: Bot. Centralbl., Cassel, Beiheft. i, 1891, p. 416. 
White-flowered Linum perenne, Bot. Gaz., Chicago (Ill.), xiii, 1888, p. 215. 
Insects and colours of flowers. Sci. Gossip, London, xxv, 1889, pp. 242-3. 
Compilations of Reports on plants visited by bees in Australia. Agric. Gaz., 
Sydney, N.S.W., iv, 1893, p. 90. 
Flower and Insect Records from New Mexico. Ent. News, Acad. Nat. Sci., 
Amer. Ent. Soc., Philadelphia (Pa.), xii, 1901, pp. 38-43. 
Bees from Southern California, visiting Flowers of Eriogonum and Rhus. [Pros- 
opis polifolii, Perdita claypolei, P. rhois.] Canad. Entomol., London, xxxiii, 
1901, pp. 281-3. 
The Bees of the genus Perdita F. Smith. [Many visits to flowers.] Proc. 
Acad. Nat. Sci., Philadelphia (Pa.), 1896, pp. 25-107.—Ab.: Justs bot. Jahresber., 
Leipzig, xxiv, (1896) 1899, pp. 126-7. 
Notes on New Mexican flowers and their insect visitors. Bot. Gaz., Chicago 
(Ill.), xxiv, 1897, pp. 104-7.—Ab.: Justs bot. Jahresber., Leipzig, xxv, (1897) 
1900, p. 8. 
New and little-known North American Bees. [Visits to Rubus ursinus, Lupinus, 
Lycium torreyi, Syringa, Cleome serrulata, Dithyrea wislizeni, Grindelia squar- 
rosa, Sphaeralcea angustifolia, Fragaria, Salix, Sida hederacea, Baileya multi- 
radiata, Larrea.] Proc. Acad. Nat. Sci., Philadelphia (Pa.), 1897, pp. 334-55. 
The Insect Visitors of Flowers in New Mexico. Zoologist, London, Ser. 4, ii, 
1898, pp. 78-81, 311-4.—Ab.: Justs bot. Jahresber., Leipzig, xxvi, (1898) 1900, 
PP- 394-5- 
New and little-known Bees from Washington State. [Visits to Rubus ursinus, 
Potentilla palustris, Syringa, Lupinus.] Proc. Acad. Nat. Sci., Philadelphia 
(Pa.), 1898, pp. 50-6. 
Notes on some South-western Plants. [Visitors to Verbena Macdougali.] Bull. 
Torrey Bot. Cl., New York, xxvii, 1900, pp. 87-9. 
The Cactus Bees; genus Lithurgus. Amer. Nat., Boston (Mass.), xxxiv, 1900, 
pp. 487-8. 
Some bees visiting the flowers of Mesquite. [Visits of Centris rhodopus C£//., 
C. Canosa Cé//., C. hoffmanseggii C#//., Anthidium parosele C#//., Megachile 
chilopsidis C#//., M. cleomis subsp. lippiae C#//., M. sidalceae C#//.,. M. 
newberryae sp. nov., Lithurgus gibbosus S7., Colletes prosopidis C#//., and 
