1909- Rcinews. 153 



in the country. On the other hand, both L. sphiulosa and 

 L. Fiiix-mas j^row in the woods at Dalystown. The coloured 

 plate in Lowe's Our Native Ferns (vol. i, plate xxi.) gives a" 

 better general idea of the plant's appearance than that in 

 English Boia/Lj. There is a rather extensive literature and 

 synononiy of this fern, which it does not seem necessary to 

 quote further than has been done above. 



Xatioual Library of Ireland. 



REVIEWS. 



ORCHARD INSECTS. 



The Insect and other Allied Pests of Orchard, Bush, and 

 Hothouse Fruits, and llieir Prevention and Treatment. B\- 

 Frkd. V. ThkobaIvD, M.A. Pp. xvi. + 550, 328 figs. Wye (the 

 Author), 1909. Price 21s. net. 



This handsome volume must prove invaluable both to fruit-growers 

 and naturalists. In it may be found an account, and usually a full 

 account, of all the common animal pests of fruit-trees, and of many 

 species which are only occasionally injurious. The insects and other 

 creatures described are grouped under the plants which they respectively 

 injure — Apple, Apricot, Cherry, &c., the arrangement under each plant 

 being systematic. There is, in every case, a description of the insect in 

 its various forms and stage.s, and a survey of its life history, followed by 

 a discussion as to the best means of preventing its ravages. All who 

 have followeil Mr. Theobald's work in recent years will expect to find 

 the subject dealt with in a manner both scientific and practical, and they 

 will not be disappointed. An appendix with approved formula; for 

 insecticides will be found especially valuable. 



Mr. Theobald has added greatly to our knowledge of the Aphidie, and 

 his descriptions of the various forms that live on the Apple and Straw- 

 berry contain much that will be new to many students of insects. In 

 looking through the book, one finds frequent evidence that Mr. 

 Theobald has not been content with repeating the statements of his 

 predecessors, for records of original observation abound. The book is 

 beautifully printed, and many of the illustrations — notably Mr. H. 

 Knight's drawings — and most of the photographs, are admirable. In 

 some cases, however, imperfect mounted specimens have been used for 

 portraiture with unsatisfactory and disappointing results, and several of 

 the photographs from good subjects are valueless owing to errors in 

 light and printing. As a whole, however, it is hard to speak too highly 

 of the book, which will be for many years to come the standard work 

 on the subject for English readers. 



G. H C, 



