592 JOURNAL OF THE EOYAL HORTICULTURAL SOCIETY. 



is an interesting one, most of tlie examples quoted being from animals, 

 but one of a form allied to Shepherd's Purse occurring in Turkestan 

 is particularly suggestive. A tall, white-flowered lowland form when 

 transplanted to the highlands becomes dwarf er and has pink flowers 

 like the corresponding highland form, but when the latter is removed 

 to the lowlands it retains its alpine form. , 



''British Plant Galls: a Classified Text-book of Oecidology." 

 By E. W. Swanton. Introduction by Sir Jonathan Hutchinson. 

 8vo. xv + 287 pp. (Methuen, London, 1912.) 7s. Qd. net. ' 



This is the most complete list of British galls hitherto published 

 in England, and contains a considerable number of illustrations which 

 will aid in making the nature of the gall more evident. A few galls 

 recorded as British have not been included, but that is only to be 

 expected in a work of this kind, for many of the records are buried 

 in Transactions of various field clubs and so on, which would be almost 

 impossible to consult except in the most complete libraries. As it is, 

 the author has collected information from many sources, and the field 

 natm^alist owes him a debt of gratitude it will be difficult to repay. 

 Some of the illustrations are coloured. 



*' A Monograph of the MycetO'Zoa : a Descriptive Catalogue of the 

 Species in the Herbarium of the British Museum." By A. Lister. | 

 Second Edition, revised by Gulielma Lister. 8vo. 302 pp., 202 plates, 

 56 woodcuts. (British M^useum, Natural History, 1911.) Price 30s . 



The second edition of this well-known work has just been issued. 

 Mycetozoa or Myxomycetes are organisms on the border-line between 

 plants and animals, and though they are by several of those most j 

 competent to judge considered as animals, by general consent they 

 are handed over to botanists, who place them as a special group below 

 the Fungi. The first edition — published in 1894; — aroused such wide- 

 spread interest that large supplies of material came to hand from all 

 quarters, and this led to the recognition of new forms, and to various 

 taxonomic modifications. - 



The present volume incorporates these changes, and also the 

 necessary alterations in nomenclature which arose in connexion with 

 the *' International Eules. " A special feature is a very beautiful 

 series of plates, more than half of which are coloured. 



Miss Lister is to be congratulated on bringing the second edition to 

 Such a successful issue. The coloured plates ate of great assistance, and 

 as a systematic treatise the work is a model of accuracy and precision. 

 We can safely say that no gxoup of organisms included in the lower 

 Cryptogams is in such good order for the botanist as the Mycetozoa. 



"The Carnation Year-Book." Edited by J. S. Brunton. 8vO. 

 78 pp. (Horticultural Printing Co., Burnley, 1912.) Is. 6d. 



We beheve this is the third year-book of the Perpetual Flowering 

 Carnation Society, containing a list of members up to date, report and 

 balance sheets, registered varieties, and some excellent articles on 



