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p. 830. D^r Bromfield remarks that those localities are not the richest in species where the vegetation is most luxuriant: indeed the most unpromising sports to the eye, barren sandy fields & wastes often yield an ampler harvest than the very green wood conceals beneath its leafy bowers. So Humboldt has remarked that the damp forests of the Orinoco produce a majestic vegetation, but far poorer in number of species than the burnt-up campos of Brazil - again the astonishing number of plants which crowd the arid shores of the Mediterranean, is perhaps almost equal to number of species in Tropics. — Experience fully proves that a wet & cloudy climate, however mild & agreeable, sustains a flora distinguisged usually by great luxuriance, but by a remarkable paucity of species. — M^r Watson found northern British forms constituting a larger proportion of the azorian vegetation. I shd think all the above was accounted for by uniformity & non uniformity of conditions. Periods of drought & damp alone makes astonishing difference. — clear sky makes heat in day & also at night effect animal kingdom also.

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p. 837. D^r Bromfield agrees with Babington only 2 British Ulmus, viz. U. suberosa & U. montana. The Former with all its vars. marked by disposition to emit slots & hence perhaps seldom coming to perfection, the back always deeply cracked & wehn young branches winged. The U. montana & its vars. U. glabra &c. has smooth bark, few or no suckers, & is increased by fruit. M^r Knight raised several of the supposed species of Elms according to Bentham from the seed of one kind alone. —

p. 883. D^r Bromfield on Quercus robur & sessiliflora, says all the characters are so fluctuating "as fairly to induce suspicion of their being really distinct." Still as M^r Bree has remarked in Loud. Arbr. Brit. "though there are sessile oaks bearing fruit on peduncles, and pedunculated oaks bearing almost sessile fruit, there is yet a certain indescribable something about the trees, by means of which I can always distinguish each, without minutely examining either the acorns or the leaf-stalks." D^r B. says

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says the most constant characters of Q. sessiliflora which he has found "are those of the fruit & leaf-stalk, for although the acorns are often in Q. sessiliflora elevated on a very distinct peduncle, I have never seen the latter anything like so slender & elongated as in Q. robur, notwithstanding that this last sometimes bears its acorns on an abbreviated stalk very similar to the occasional one of Q. sessiliflora."

This is a splendid case to enlarge on, such a great prominent, valuable & well known object. —

p. 966. D^r Bromfield remarks that many tropical genera, as passiflora, Dioscorea, & even tropical families as Palms have 1 or more outlying species that extend far into the temperate zone: so with plants having their chief seat in S. Europe, as Narcissus, Gladiolus, Iris, Daphne & others have representatives in the middle parallels of our continent. —