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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



who grow the Queen of flowers. The illustrations are admirably drawn 

 and faithfully coloured, so that anyone not familiar with the pests can 

 easily identify them : their life-history, habits, and the best means of 

 destroying them are clearly denned. The only exception is that of 

 " rose-tree canker." Mr. Massee says about this disease : " Unfortunately 

 no cure is known — which is what might be expected, since the cause is 

 unknown." Fortunately this is not a common disease, and our experience 

 is that only delicate varieties, such as Marechal Niel, are very subject to it. 

 On page 10 there is a paragraph that deserves printing in capital letters : 

 " There are two golden rules which should be kept in mind when waging 

 war against insect and fungoid pests. The first is to look out for them 

 early, and on their first appearance to at once take the necessary means 

 for their destruction. The second is to persevere with the remedy 

 adopted until a cure has been effected." 



" Dahlias and their Cultivation." By J. B. Wroe. 8vo., 90 pp. 

 (Collingridge, London, 1908.) Is. 



This is a nicely printed little book, dealing with propagation, culture, 

 exhibiting, the best types for garden decoration, storing, injurious 

 and friendly insects, selections of the best varieties, &c. The matter is 

 well up to date, and the selection of varieties is excellent. 



"The Book. of the Chrysanthemum." By Percy S. Follwell. 8vo., 

 98 pp. (John Lane, London, 1908.) 2s. Gd. 



A well-got-up little book, dealing with the history, culture, hybridising, 

 judging, arrangement, the best varieties to grow for exhibition, home use 

 and market, insect pests and diseases, &c. Although we do not find 

 anything new in the book the matter is thoroughly practical and reliable, 

 and the lists of varieties to grow are well up to date. It is astonishing 

 how varieties that were popular for exhibition purposes a few years ago 

 have practically disappeared, to be replaced by others of larger size ; and 

 we agree with the author that single varieties will become more in favour 

 in the near future than the great unwieldy blooms of the present day. 

 It is only amongst the rarely grown reflexed varieties that we find old 

 familiar names of thirty or more years ago still to the fore, and when 

 the reaction against big blooms sets in — as it is almost sure to do— we 

 hope the beautiful reflexed varieties will not be forgotten. There is a 

 very good index. 



" Greenhouse and Conservatory Construction and Heating." By 

 Paul N. Hasluck. 8vo., 160 pp. (Cassell, London.) 2s. 



This book will be very useful for the amateur who desires to erect 

 his own greenhouse, frames, &c, as very complete directions are given 

 on the best wood to get, how to prepare and fix it, and the average cost 

 of material, &c. Again boilers suitable for both small and large structures 

 are dealt with exhaustively, and most of them are illustrated — in fact they 

 are so numerous as to be almost confusing to the novice. If smoke from 

 the stoke chimney proves a nuisance, the author shows how this may be 

 got over, and there is a vast quantity of other valuable information for 

 anyone contemplating the erection of glass structures. 



