TITLES. 
Aves 17 
Thompson, E. E. Additions to tho List of Manitoban Birds. Auk, x, 
pp. 49 & 50. 
Todd, W. E. 0. Summer Birds of Indiana and Clearfield Counties, 
Pennsylvania. T. c. pp. 35-46. 
Tristram, H. B. On the Birds indicated by the Greek } a\Kv<iv. Ibis, 
1893, pp. 215-217. 
. Differentiation, Migration, and Mimicry. Presidential Address 
to the Biological Section of the British Association at Nottingham. 
Zool. 1893, pp. 3G1-386. 
• . [See also Scolopacidw, p. 29.] 
Trumbull, G. [See Anseriformes , p. 31.] 
Verrill, G. E. List of Birds obtained and observed in Dominica, 
with notes on their Habits, Nests, and Eggs. Tr. Connect. Ac. viii, 
pt. 2. pp. 318-350, pis. xxv-xxvii. 
Vorderman, A. G. Bijdrago tot do Kennis dor Vogels van den Kangean- 
Archipel. Natuurk. Tijdschr. Nederl. Ind. lii, pp. 182-208. 
[Cuculi, p. 36; Oriolidce, p. 39 ; Dicriirklce, p. 39 ; Ploceidce , p. 40 ; 
Turdidce , p. 46.] 
Wallengren, H. Die Vogelfauna des Nordwestlichen Schonens in 
Schwodon. J. Ornithol. 1893, pp. 153-169. 
Wallis, H. M. The Evolution of the Bird. Rep. Brighton Soc. 1893, 
pp. 10-14. 
Walter, A. [See Cuculidce , p. 35 ; Turdidce , p. 46.] 
Watson, J. Ornithology in Relation to Agriculture and Horticulture. 
London : 1893, 8vo, 220 pp. 
Wayne, A. T. Additional Notes on the Birds of the Suwanee River. 
Auk, x, pp. 336-338. 
Wenzel, K. [See Corvidce , p. 38.] 
Wessner, P. Beitrage zur avifauna des mittleren Saalthales (Jena und 
Umgegend). MT. Geogr. Ges. Thuring. xii, Heft i, pp. 1-7. 
White, S. E. Birds observed on Mackinac Island, Michigan, during 
the Summers of 1889, 1890, and 1891. Auk, x, pp. 221-230. 
Whitehead, J. Exploration of Mount Kina Balu, North Borneo. 
With coloured plates and original illustrations. London : 1893, 
1 vol. 4to, xii & 317 pp., 32 pis. 
. [See also Muscicapidce , p. 47 ; and Pittiidoe , p. 49.] 
Whitely, H. Obituary. Ibis, 1893, pp. 287 & 288. 
