[537] 'The Poultry Book,' 1866, p. 123.
[538] Youatt on Sheep, p. 312.
[539] 'Treatise on the Almond Tumbler,' 1851, p. 33.
[540] Dr. Heusinger, 'Wochenschrift für die Heilkunde,' Berlin, 1846, s. 279.
[541] Youatt on the Dog, p. 232.
[542] 'The Fruit-trees of America,' 1845, p. 270: for peaches, p. 466.
[543] 'Proc. Royal Soc. of Arts and Sciences of Mauritius,' 1852, p. cxxxv.
[544] 'Gardener's Chronicle,' 1856, p. 379.
[545] Quatrefages, 'Maladies Actuelles du Ver à Soie,' 1859, pp. 12, 214.
[546] 'Gardener's Chronicle,' 1851, p. 595.