58 Forestry Quarterly. 



is thoroughly vvoika'ole and productive of excellent results in longleaf 

 and shortleaf pine ; and also that it is equally applicable to western yellow 

 pine. Furthermore there seems to be no reason why the method should 

 not be used with any species which forms even aged groups. It is at 

 present being tried by the Forest Service in the mixed conifer type (west- 

 ern yellow pine, sugar pine, incense cedar, Douglas fir and the white fir) 

 of the western Sierras, and if successful will probably revolutionize the 

 study of yield throughout the entire country. 



The Standardt::ing of Log Measures. By Edwin Allen Ziegler. 



Vol. IV, No. 2. 



This is a sound article showing clearly the variations caused by different 

 log scales and methods of sawing, and advocating the use of the cubic 

 foot. It is a specific article contributirig something to professional knowl- 

 edge and is also partly propagandist. There is no doubt that the author's 

 recommendations will eventually be adopted, but not for a long time or 

 without a struggle. This should not, however, prevent foresters from 

 keeping the end in view and making every effort to attain it. 



Forest Mapping and Timber Estimating as Developed in Mary- 

 land. By Fred W. Besley. Vol. IV, No. 2. 



The work herein described is instructive in that it shows how to get a 

 rough but sufficiently accurate idea of forest areas and stands in a woodlot 

 state. It will be of considerable value to those starting forestry for the 

 first time in a state, and to foresters in states which have for some time 

 applied the science. 



The Log Scale in Theory and Practice. By Harry D. Tieman. 



Vol. V, No. I. 



This article is the result of much original research in the important 

 and complex subject of log measurement, in consequence the author is 

 able to give in considerable detail the underlying principles of his subject. 

 He has also evolved, as a result of the actual measurement and sawing 

 out of 224 perfect logs, an ideal rule which he expresses by a formula. 

 The article is a valuable contribution, not only to the scientific knowledge 

 of the profession, but also to the practical application of this knov/ledge 

 to the lumber industry. 



IX — ^Engineering. 



A System for Getting Topography in Reconnaissance Work in 



the Western Cascades. By Walter H. Leve. Vol. VTT, No. 2. 



The article gives the details of the topographic part of the reconnais- 

 sance in the western Cascades of Washington. The nature of the subject, 

 together with the none too clear style of the author, would make this 

 paper difficult to understand for one without much topographic experience. 

 Since the article will be read chiefly by men engaged in this work it will 

 have value for starting discussion and suggesting improvements. One im- 

 provement would be to have the field man complete his sketch in the 

 field rather than turn in a series of short contours. 



