RKVIEWS 181 



can learn the simple routine of camp accounting in a few days. It may 

 be true that the author found some second-rate men masquerading as 

 logging engineers at this rate, but he evidently failed to ascertain the 

 salaries of the prominent and representative engineers who reviewed his 

 manuscript. It is unfortunate that this statement should appear twice 

 in a publication which will be circulated as widely as this bulletin, since 

 the logging engineer is just beginning to take his place as the man in 

 charge of the planning of operations, and as such is being placed on a 

 par with the foremen or other high-salaried men. 



Since the industry is in a state of rapid evolution and the publica- 

 tion of the bulletin was evidently delayed for some time following its 

 compilation, several important changes might be given. High lead log- 

 ging, wdiich is mentioned as a special method, would now be described 

 as the standard method. As a result; the standard yarding distances 

 listed would have to be considerably decreased, and the Duplex loading 

 niethod would be described as the standard method of loading logs. If 

 the bulletin were written at the present time, mention would need to 

 be made of the swinging-boom method of loading, and also the two- 

 speed donkey engine, which is meeting with considerable favor. 



The description of operations is taken up chiefly from the standpoint 

 of costs rather than from that of comparative efficiency. This is in 

 keeping with the announcement made in the preface, namely, "greatest 

 emphasis is laid on costs, especially costs about which not much written 

 material is available." The lists of costs are very complete, and in 

 many places the fluctuation is given over a period of several years. 

 Unfortunately, all of the costs cover a period prior to April, 1917 — that 

 is, previous to the present era of w^ar prices, and are, therefore, entirely 

 out of date. 



However, the bulletin is presented in a very readable form and forms 

 a valuable addition to the publications on lumbering. 



E. T. C. 



Wood and Other Structural Organic Materials} By Charles H. 

 Snow. 191 7. Pp. 478. McGraw-Hill Book Co. 



It will be of value to many foresters and teachers to know that a con- 

 cise summary of the influence of wood-destroying animals and the ap- 

 proved remedies and preventatives devised have been prepared by one 

 who has devoted special study to this field. Snow is an engineer who 

 has given special attention to shipworms and to methods of controlling 



^ See also review in Vol. XVI, p. 585. 



