86 TRANSACTIONS OF ROYAL SCOTTISH ARBORICULTURAL SOCIETY. 



can one find so easily and readily a clear and concise definition 

 of the technical terms as applied to timber in every stage of 

 its production and consumption. An explanation of the terms 

 as applied to wood in the growing tree and in its manufactured 

 forms is given. This applies to both home and foreign timber. 

 The terms used in the mahogany and hardwood industries, in 

 the saw-mill and wood-working trades, in architecture and 

 building construction, have been carefully considered and the 

 meaning of each explained. The book should also prove a 

 useful help to all those engaged in the numerous arts and 

 crafts in which converted timber is used. 



A number of useful appendices is added, such as a list 

 of contractions and abbreviations in use in commerce ; the gain 

 in freight on planed wood ; the actual measurements compared 

 with the nominal; approximate weight per cubic foot of various 

 woods; the official weight of American hardwood lumber; and 

 a glossary of terms in English, Swedish, French, German, and 

 Spanish. 



Forest Managefjienf. By A. B. Recknagel and John Bentley. 

 Pp. xiii4-269. London: Chapman & Hall, Ltd., 1919. 

 Price 13s. 6d. 



In a recent issue of the Transactions there appeared a review 

 of the Theory and Practice of Working-Plans by Recknagel, to 

 which the present work on Forest Management by Recknagel 

 and Bentley may be regarded as a companion volume. 



The work on Forest Management, as the title implies, is 

 wider in scope than the treatise on working-plans and embraces 

 the whole field of forest management, a section of the book 

 being devoted to each of the subjects included in this branch 

 of forestry, viz. : Forest Mensuration, Forest Organisation, 

 Forest Finance, and Forest Administration. The authors have 

 been markedly successful in their efforts to bring out the mutual 

 relationships of these divisions of forest management, and the 

 different sections fit into the general plan of the book in such 

 a way as to provide a coherent and well-balanced review of 

 the whole subject. The book is intended chiefly for the layman 

 timber owner and for junior students in the Universities, and 

 has special reference to American conditions, although the 



