[943] Vol. xliii., 1744-45, p. 525; vol. xlv., 1747-48, p. 602.
[944] 'Transact. Hort. Soc.,' vol. v. pp. 63 and 68. Puvis also has collected ('De la Dégéneration,' 1837, p. 36) several other instances; but it is not in all cases possible to distinguish between the direct action of foreign pollen and bud-variations.
[945] T. de Clermont-Tonnerre, in 'Mém. de la Soc. Linn. de Paris,' tom. iii., 1825, p. 164.
[946] 'Transact. of Hort. Soc.,' vol. v. p. 68.
[947] 'Beitrage zur Kenntniss der Befruchtung,' 1844, s. 347-351.
[948] 'Die Fruchtbildung der Orchideen, ein Beweis für die doppelte Wirkung des Pollen,' Botanische Zeitung, No. 44 et seq., Oct. 30, 1863; and 1865, s. 249.
[949] 'Philos. Transact.,' 1821, p. 20.
[950] Dr. Alex. Harvey on 'A remarkable Effect of Cross-breeding,' 1851. On the 'Physiology of Breeding,' by Mr. Reginald Orton, 1855. 'Intermarriage,' by Alex. Walker, 1837. 'L'Hérédité Naturelle,' by Dr. Prosper Lucas, tom. ii. p. 58. Mr. W. Sedgwick in 'British and Foreign Medico-Chirurgical Review,' 1863, July, p. 183. Bronn, in his 'Geschichte der Natur,' 1843, B. ii. s. 127, has collected several cases with respect to mares, sows, and dogs. Mr. W. C. L. Martin ('History of the Dog,' 1845, p. 104) says he can personally vouch for the influence of the male parent of the first litter on the subsequent litters by other fathers. A French poet, Jacques Savary, who wrote in 1665 on dogs, was aware of this singular fact.
[951] 'Le Pigeon Voyageur Belge,' 1865, p. 59.
[952] 'Flora Anomala,' p. 164.