BOOKS AND CURRENT LITERATURE • 135 



ably augmented over the first edition by data taken from recent Forest 

 Service bulletins, state reports and other sources. Then come descrip- 

 tions of the silvicultural methods of reproducing forests, forest planting 

 and seeding and intermediate cuttings. In the discussion of injuries 

 to the forest from animals, insects, fungi and forest fires not unnatur- 

 ally somewhat more full notice is given to the white pine blister rust 

 and to the chestnut bark disease. Two forest insects not mentioned 

 in the first edition are briefly described — the European pine-shoot moth 

 (Evetria huoliana) and the pine sawfly {Diprion simile). The thi-ee 

 final chapters are on timber estimating and marketing, utilization of 

 forest products and growth of trees and forests. In the rearrangement 

 the chapter on growth might well have preceded that on estimating. 

 That on utilization is all new matter and rounds out the volume in a 

 desirable way, especially where it is to be used as a text book. 



Another improvement in the new edition is the inclusion in the 

 appendix of a much larger number of tables than appeared originally; 

 80 as against 56. It is no small convenience to foresters to Jiave such 

 data assembled in one place, the more so as some of the tables here 

 reprinted are not otherwise readily accessible. The tables include 

 log rules, volume tables, growth figures for individual trees, and yield 

 tables. The authors state their aim to be ''to gather together all the 

 reliable tables at present available, which contain figures showing vol- 

 ume and growth for the important commercial trees and types," iDut 

 as they point out "the field is very incompletely covered and indeed 

 for many species data are entirely lacking;" — an interesting commen- 

 tary that forestry in this country is still a young profession. Nine of 

 the tables are original with the authors, as against two in the first 

 edition, but of these all have previously appeared in reports or bulle- 

 tins issued either in Connecticut or Veraiont. 



The manual is illustrated with the plates and diagrams used in the 

 first edition. Special mention may be made of the diagrams, in that 

 they clearly bring out the esssential differences between the several 

 silvicultural methods, a point that particularly needs to be emphasized 

 since many persons appear to feel that forestry practice consists solely 

 in the leaving of a few seed trees and the fixing of a diameter limit. 

 The make-up of the book is what we have come to expect in Wiley's 

 forestry series, both paper and press work being of a high standard. 

 No mistake can be made in putting this volume on one's shelf of forestry 

 books. — R. S. HosMER. 



