8a

159

Von Buch¹ says from Humboldt.² in Laponia. genera to species: 1. 2,3 — From Mackenzie³ Iceland there 144 genera & 365 species of plants not cryptogamic but 1 . 2,53.—

In know varieties, there is analogy to species & genera.— for instance three kinds of greyhound.— In plants, do the seeds of marked varieties produce no difference, if they do, there probably will be this relation also. // Yes //

Fox ⁴

¹ Leopold von Buch. Description physique des Iles Canaries, traduit de l'allemand par C. Bourgeois, Paris 1830. Proportion of genera to species: in North Africa 1 to 4·2 ; in Canary Islands 1 to 1·46; on St Helena 1 to 1·5. According to Humboldt, in France 1 to 5·7 ; in Lappland 1 to 2·3. [deB67]

² Alexander von Humboldt. De distributione geographica plantarutn secundum coeli temperiem et altitudinem montium, prolegomena, Lutetiae Parisiorum 1817. [deB67]

³ Sir George Stewart Mackenzie. Travels in the Island of Iceland, Edinburgh 1812, Chapter VIII, Botany, pp. 350-356. [deB67]

⁴ William Darwin Fox. Probably personal communication. [deB67]

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160

The creative power seems to be checked when islands are near continent: compare Siicily & Galapagos !! —

Some of the animals peculiar. to Mauritius are not found at Bourbond Zoolog. Proceedings 1832.p. 111¹

19

¹ Julien Desjardin. Proc. Zool. Soc. 1832, p. 111:— "their animals are not universally the same, some species being met with in the one which never occur in the other " [deB67]

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165

M^r Martens of Zoolog Soc told me an Australian dog he had, used to burrow like fox.— a sort of internal bark, would remain for long time together in tub of water with only nose projecting.— would pull the garden bell, & then run into Kennel to watch who would come to the door — would constantly do this, so was obliged to be removed.— In L.' Institut. 1837: p. 404. account of instinct of dogs.— agreement & reason

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166

Some animals common to Mauritius & Madagascar.—

Proceedings of Zoolog. Soc June 1837

p. 53 — an Irish Rat— — different from English.

Waterhouse has information respecting the Water Rat.—

8c

175

20

A breed of Blood Hounds from Aston Hall¹ close to Birmingham, and supposed to be descended from a breed known to be there since the time of Charles, — and now in the possession of M^r Howard Galton have one of the vertebra, about 2/3 from base of tail, enlarged two

¹ For further citations on Aston in the literature see: Pearson, Hesketh. 1930. Doctor Darwin (p. 180). London, Oswald, Arthur. 1953. Aston Hall, Warwickshire—I. The property of the Corporation of Birmingham. County Life, London, 114: 552-555, 620-623, 694-697; Historic Houses and Castles in Great Britain and Northern Ireland (1959 Edition), Index Publishers Limited, London, 1959. [Ba]

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It is certain, that North American fossils bear the closest relation to those now living in the sea.— See Rogers¹ report to Brit Assoc to on N. American Zoology —

¹ Henry Darwin Rogers. "Report on the Geology of North America ", Rep. Brit. Assoc. Adv. Sci. Edinburgh 1834 [1835] 3: 1-66. [deB67]