BOOK REVIEWS. 



373 



to know more of the Holbein porch at Wilton House (p. 219). Also the 

 rare reproduction of so beautiful a specimen of stone -work as the 

 Nailsea Court summer-house calls for more detailed remarks concerning 

 its history. The many reflections that the writer could have handed 

 on to us are evident, at times, as we turn over the pages. She wonders 

 why Pergolas have only so recently been brought to Northern countries 

 whilst other ideas from Italy have been freely used for so many 

 centuries. It is when free scope is allowed to a capable writer that 

 sound lessons are learnt from illustrated books. 



In regard to the way in which the pictures have been grouped 

 together, we should, we confess, have preferred having a more marked 

 distinction between those water -gardens where only still reflections 

 are called for, and those where life and vivacity are created. The 

 complete difference between the mirror-like effects obtainable 

 from canals or silent pools, and the noise and buoyancy of sparkling, 

 rushing, moving water could be more markedly shown if the various 

 illustrations were grouped together in their respective classes. The 

 study of water has been somewhat neglected in our English parks 

 and gardens hitherto, but the time has come when a new Le Notre, 

 it is hoped, will arise and; with a true magician's wand, call into being 

 a few of those fine effects that we all have learnt to admire amidst 

 the stately avenues of Versailles. 



" Economic Trees and their By-products." By Mrs. M. Grieve. 8vo. 

 70 pp. (The Author, The Whins, Chalfont St. Peter, Bucks [1920].) Paper 

 covers, is. 6d. 



The sub-title describes the contents : " A concise account of over 70 species 

 of trees that readily grow in Great Britain and which possess valuable by- 

 products, now either neglected or entirely wasted." Large as the number may 

 seem, it might easily have been larger ; for some well-known trees (if we may be 

 permitted to use the term as the author does, to include shrubs as well) are 

 omitted, although they are hardy and yield products of value. The list will 

 prove of interest and of value to many, and will serve to show how many uncon- 

 sidered trifles have been from time to time turned to account. 



" Manual of Vegetable-Garden Insects." By C. R. Crosby and M. D. Leonard. 

 8vo. 226 figs, i + 381 pp. (Macmillan, London, 1918.) 10s. 6d. 



This book is intended as a guide to the insect pests of the United States 

 and Canada. The most important pests are given, together with their life 

 histories and remedies. 



Eighteen chapters of the volume deal with insects attacking certain groups 

 of plants, such as the cabbage family, peas and beans, asparagus etc. Chapter 

 19 is devoted to a rough classification of insects, explaining particularly their 

 mouth parts. It concludes by giving a list of the principal insecticides. 



Many of the insects are well known in this country, and the book can be 

 profitably perused as to the general habits of well-known pests and the measures 

 to be taken against them. 



The sodium -arsenite bait (given as a preventive against the Onion Fly) should 

 be wider known in this country, on account of the great success obtained in 

 America and Canada. 



" Timbers and their Uses." By Wren Winn. 8vo. 333 pp. (Routledge, 

 London, 1919.) 10s. 6d. net. 



This is an ambitious book, in the compilation of which many well-known 

 authors have been pressed into service, including Laslett, Boulger, Ward, and 

 Webster. 



Though the book contains little that is new, the arrangement presents 

 information in a concise and accessible form. For instance, in the chapter on 

 " The Uses of Wood," which occupies about oue-third of the work, the author 



