REVIEWS 911 



may be settled out of court — a good showing! A tabulated detail 

 statement on 40 pages records all the fires of the year. 



We note as singular the absence of any discussion, of installation 

 of observation towers, telephone lines, and other means of preventive 

 character, which no doubt exist, for they appear in the illustrations. 



B. E. F. 



The Pine Trees of the Rocky Mountain Region. By G. B. Sud- 

 worth. Bulletin 460, U. S. Department of Agriculture. Contribution 

 from the Forest Service. Washington, D. C. 191 7. Pp- 46- 



Since the publication of the author's Forest Trees of the Pacific 

 Slope, the trees of the Rocky Mountain region have been similarly 

 described in small handy bulletins, each covering certain genera only. 

 The first one, published in 191 5, included the genera Cupressus and 

 Juniperus, and the second took up the genera Picea and Abies. 



The present bulletin deals W\\h 14 pines. Its style of treatment is 

 uniform with that of the preceding issues, giving for each species the 

 early history of its discovery and nomenclature, distinguishing char- 

 acteristics, and facts of its occurrence, habits, and other biological 

 data. The text is largely free from technical terms. The bulletin is 

 profusely illustrated with 28 plates, these being useful line drawings 

 of photographs. The geographical distribution is shown in color, 

 using separate maps for the different species. 



J. H. W. 



Timber Storage Conditions in the Eastern and Southern States with 

 Reference to Decay Problems. By C. J. Humphrey. Bulletin 510, 

 U. S. Department of Agriculture. Contribution from the Bureau of 

 Plant Industry. Washington, D. C. 1917. Pp. 42. 



This bulletin embodies the results of seven months' investigative 

 study of conditions of storage among mills and yards. It opens with 

 a brief discussion for the layman of the causes of decay in timber, 

 giving the life-history of a fungus and how it spreads. It then dis- 

 cusses the methods usually followed in handling and storing timber 

 at the mills and retail yards, pointing out the mistakes practiced in rela- 

 tion to conditions favorable for fungus growth. The location of most 

 mills and storage yards gives moisture conditions very favorable to 

 fungi, and these are generally accompanied by insanitary surroundings. 



Improvement can be made by draining the storage yard, making 



