[148]

p 11

Vol VI. no 1 (p 1) an admirable paper on Gartnërs works on Hybridism, which must be read & reread, if I cannot purchase it which I will try - too long to abstract.

[M. J. Berkeley. 1851. Gärtner's observations upon Muling among plants. Journal of the horticultural society, vol. 6: 1-13.]

(22)

Also Chevreuls Papers on Species & Variation

[M. Chevreul. 1850. General remarks on the variations of the individuals which form the groups called, in Natural History, varieties, races, sub-species, and species. Translated from the French. Journal of the horticultural society, vol. 6: 61-110.]

Vol VII. p. 34 Review on Schleiden's Theory of Agriculture says that in Flora of country, as in Koch, the plants are divisible into 2 classes, the variable & non variable - the former being the alpine & those that grow in neighborhood of cultivated ground.

[M. J. Berkeley. 1852. Dr. Schleiden's theory of agriculture. Journal of the horticultural society, vol. 7: 30-46.]

p 70 Hooker on the Climate & Vegetation of E. Nepal. The species of Rhododendron run into stripes, races & constant varieties "assuming characters inherited by the seedlings. This is habitually the case with those that have considerable ranges in elevation; they alter their habit (as willows do in our own

[148v]

country & there is more apparent difference between the robust, hardy, rusty-leaved dark- coloured seedlings from an alpine locality & the young plants of the same species from wooded regions lower down than between some widely distinct species.

New Zealand Paper

He says somewhere, but I cannot find the place, that seedlings from trees growing at different height, were hardy is different degrees. (or was this in N. Zealand Paper on species)

[J. D. Hooker. 1852. On the climate and vegetation of the temperate and cold regions of East Nepal and the Sikkim Himalaya mountains. Journal of the horticultural society, vol. 7: 69-131.]