[104.] A good description of these whistles, by Mr. Tegetmeier, with illustrations, will be found in the Field of the 12th March, 1870.
[105.] Darwin, “Variation of Animals and Plants under Domestication,” i. pp. 204, 205.
[106.] Hunter “On the Animal Economy,” p. 194.
[107.] “Illustrations of British Ornithology.”
[108.] “Ornithological Dictionary,” Preface, 1st edition.
[109.] “Pigeons: their Structure, Varieties, Habits, and Management.” By W. B. Tegetmeier, F.Z.S. London, 1868.
[110.] “Glossary,” 4to. Lond. 1822.
[111.] Sir W. Raleigh, “History of the World,” Book I. Part i. c. 6.
[113.] Translated from the French by Sir Thos. Mallory, Knt., and first printed by Caxton, A.D. 1481.