Ronalds' s Vyrus "M-dlus Brentfordiensis. 587 



greens can be transplanted in almost all months [see our 

 extracts fromMr.M'Nab's pamphlet on this subject, p. 78, 79.]: 

 this arises from their perspiration being much less copious 

 than in deciduous trees, wherefore the spongioles have less 

 difficulty in supplying the loss occasioned by it." 



" In damp or wet weather this evaporation is least ; in hot 

 dry weather it is greatest." Conformably with these con- 

 ditions, and consistently with the foregoing principle, it is, 

 " that deciduous plants, if taken from the ground in summer, 

 are put into pots and put in a hot-bed to recover ; not for 

 the sake of the heat, but because the atmosphere of a hot- 

 bed is so charged with humicUty that perspiration cannot go 

 on, so that the vital energies of the plant, instead of being 

 wasted by evaporation, are directed to the formation of new 

 mouths by which to feed." This is a sketch of the scope of 

 the Introduction, which, as we said above, we think a truly 

 valuable article. 



Tlie subject matter of the work itself is divided into two 

 alphabets ; one for the objects of culture in the fruit-garden, 

 the other for those of the kitchen-garden : in the latter, at 

 p. 551., occurs the notice of the perennial duration of the 

 scarlet runner ; to which fact we have previously called 

 attention, (p. 485.) 



Art, II. Vyrus 'Mains Brentfordiensis ; or, a concise Descrijjtion 

 of selected Apples. By Hugh Ronalds, F.H.S., Nurseryman, 

 Brentford ; with a Figure of each Sort drawn from Nature, on 

 Stone, by his Daughter. London, 1831. 4to, with a coloured 

 Figure of each kind of Apple, 5l. 5s. ; with a plain Figure, 4/. 4s. 



We have more than once given notice of the forthcoming 

 of this work, in terms announcing our high anticipations of 

 its excellence. We have not been disappointetl, and can 

 assure our readers that the coloured plates which it contains 

 have never been surpassed, and very seldom equalled, in 

 point of fideUty and beauty of execution. Considering this, 

 and the number of apples figured (179), the work is re- 

 markably cheap ; and we cordially recommend it as exhibit- 

 ing the most complete collection extant of delineations of 

 this most useful of British fruits. What adds to the value 

 of the book is, that plants of the whole may be obtained 

 from the author's nursery, and that the fruit may be seen and 

 tasted there during the autumn and winter months ; but what 

 is a great blemish is the want of more synonymous names. 



