REVIEWS 257 



preventing diseases. Some twenty pages discuss injurious influences 

 from soil and atmosphere. Fungus growth on trees ; insect attacks 

 and their remedies; injuries from animals and birds; fruit trees and 

 their enemies ; accidents and diseases to \Vhich trees are liable ; pre- 

 servatives and materials, are the headings of other chapters, which 

 reveal the lack of logical arrangement. The book is neither con- 

 structed on scientific lines, nor exhaustive of its subject; but it is, to 

 be sure, a volume for amateurs, who may find many good suggestions 

 in it. It is written in simple language, instructive and avoiding 

 tedious details. B. E. F. 



Farm IVoodlot Timber: Its Uses and Principal Markets. By G. X. 

 Lamb. Extension Bulletin 31, Purdue University, Department of 

 Agricultural Extension, LaFayette, Indiana. 1916. Pp. 34. 



This bulletin refers specifically to Indiana woodlots, of which there 

 are over three and a third million acres, with a yearly product of 

 $1.67 per acre. 



The object of the bulletin is to enable the farmer to increase this 

 return. Indiana is a hardwood forest State, only scrub pine and red 

 cedar are the conifers among fifty or sixty commercially valuable 

 broadleaf trees. The occurrence and use of these are discussed as 

 well as the market conditions. So ne of the information lacks in 

 practical applicability, e. g., a table of maximum and minimum prices 

 for sawlogs at the mill gives for white oak $10 as minimum and $70 

 as maximum; for ash $12.50 and $50, etc., without giving a hint 

 how the log grades run for various kinds parallel to these prices, 

 except in general terms. An improvement in this respect is found 

 in a table of veneer log prices, for which sixteen species are used, the 

 cheaper for boxes and crates, the higher priced for furniture, where 

 the size (diameter) is the price-maker, varying for the common hard- 

 woods from $10 to $55. Discussions under the different kinds of 

 wood bring out, however, what kind of logs are used for various 

 manufactures and their relative values. It is pointed out that by 

 selling graded logs one-third better price is secured than by selling 

 at a common log price. 



The unfortunate Doyle rule seems the established scale in use. 



Fuel wood has an average farm value of $3.90, and in larger cities 

 m.ay go up to $6.85, while railroad ties bring from 30 to 65 cents, the 



