REVIEWS 633 



tribution, may be expected to enlarge the market for wood, though 

 former per capita consumption may not again be brought about. 



To the forester one of the most gratifying passages is in regard to 

 sustained annual )aeld from National Forests (page 99), where it is 

 stated : "The industries supported by National Forest timber, however, 

 should be permanent, not the migratory sawmill of old lumbering 

 regions. Hence the cut of timber should not exceed the growing 

 capacity of the forest areas tributary to various manufacturing cen- 

 ters." The literal carrying out of this policy will correct a hitherto 

 weak spot in National Forest policy. 



The report is itself a summary of an extensive investigation, and 

 it is impossible to touch on the many important points that it covers. 

 Suffice it to say that to be well informed in their field foresters or 

 lumbermen must without question be familiar with this report. 



B. P. K. 



The Theory and Practice of Working Plans (Forest Organization). 

 By A. B. Recknagel. Second Edition. John Wiley & Sons. New 

 York. 1917. Pp. 1-265, 6 photos, 3 figs. Price $3. 



The second edition of Recknagel's "Theory and Practice of Work- 

 ing Plans" now carries the short title on the back of the volume, 

 "Forest Working Plans," in order to obviate the possible confusion 

 with House Working Plans. This is an improvement. 



As explained in the preface to the second edition the revised ver- 

 sion is improved (1) by standardizing nomenclature and definitions 

 in accordance with the S.A.F. committee report for which Reck- 

 nagel worked painstakingly, (3) by adding "Correlation of Silvicul- 

 tural Methods, and Methods of Determining the Cut," and (3) by 

 profiting from criticisms, teaching experience, and current forest lit- 

 erature. On the whole Recknagel is to be congratulated on the im- 

 provements made. He is handicapped, however, by the lack of work- 

 ing plan development in the United States and the consequent dearth 

 of material and experience to draw upon. Evidently the author feels 

 much the same way about the application of silvicultural methods, 

 rotations correlation of regulation methods with reference to species 

 or forest types, for he states (p. 3) : "The ti|me is not yet ripe for such 

 generalizations ; they must wait until the practice of forest manage- 

 ment in America has advanced further than today." In collaboration 



