Current Literature 221 



Part II is a manual of Pennsylvania trees, numbering about 

 125 species. Following a key to the families, a description is 

 given of each family, genus and species, in the natural order, in 

 each case with keys to the genera and species. The descriptions 

 of families and genera are not limited to the botanical characters 

 only, but much general information as to world distribution, 

 usefulness, biological features, etc., is included. This relieves 

 the monotony natural to purely descriptive treatises. 



Each species for comparative purposes is described after a 

 uniform schedule involving form, bark, twigs, buds, leaves, leaf 

 scars, flowers, fruit, wood, distinguishing characteristics, range, 

 habitat and importance. Each description is accompanied by a 

 plate of drawings on the opposite page, some being adaptations 

 from Sargent's Silva. They are well reproduced on good paper. 



The bulletin also contains over 100 photographic illustrations, 

 about 40 of which relate to forestry practice. The remainder 

 are fine bark studies, of much value to the general public for 

 identifying species. 



This publication should stimulate the general interest in Penn- 

 sylvania in tree study, which in turn leads to an appreciation of 

 the importance of forests. J. H. W. 



Seventh Annual Report of the Washington forest Fire Asso- 

 ciation, 1914. Seattle. Pp. 19. 



The area included in this association in 1914 covered 2,669,134 

 acres, controlled by 203 corporations or individuals. The total 

 cost of protection was 2.2 cents per acre. 



It is estimated that there are 1,000,000 acres of private timber 

 lands within the limits of the association's territory which are 

 necessarily protected, although the owners do not in any way 

 contribute to the support of association work. 



The burned area and losses during the season of 1914 are as 

 follows : 



Cut-over land 241,978 acres 



Merchantable green timber (killed) 2,239 " 



" 3,042 " 



Young growth, not merchantable 2,030 " 



Total 252,289 acres 



Merchantable timber killed 25,000 M ft. B.M. 



destroyed 5,085 " " " 



Loss in cut logs 13,048 



