to know where the articles they use come from and how they are 

 made. To foresters this book will be essential because effective 

 forest management requires knowledge of the ultimate forest 

 product, and of how that product is worked up and used. 



Trees are among the plants most useful to man. Yet how 

 many botanists know the principal uses of trees, aside from lum- 

 ber? How many realize that the wood of the chestnut {Castanea 

 dentata) is used not only for lumber, railroad ties, and "snake" 

 fences such as Lincoln made in his youth, but produces more 

 than two thirds of the tannic acid products made in the United 

 States? 



Brown gives clear and readable accounts of the history, 

 process of manufacture and uses of the principal forest products 

 aside from lumber. In the chapter under "Wood Pulp and 

 Paper" he states that the Chinese, and not the Egyptians, as 

 we had supposed, must be credited with the first manufacture 

 of paper. About eighty to eighty-five per cent of all the paper 

 used in this country is now made from wood, whereas before the 

 middle of the nineteenth century paper was made entirely from 

 other vegetable fibers. The increase in the quantity of wood used 

 for paper has been enormous, over three hundred per cent 

 between 1900 and 1919. The supply of the most desirable 

 wood, spruce, is diminishing so rapidly that other woods are 

 being studied as substitutes, and paper mills are being forced to 

 move out of the country. Brown gives in detail the various 

 processes of making paper. 



Of special interest, particularly to foresters, is the information 

 on sources of supply with relation to the present and future 

 forest resources of the country. Naval stores (turpentine and 

 rosin) are doomed to virtual disappearance in a short while owing 

 to the ruthless destruction by lumbering and fire of the longleaf 

 pine forests from which these important materials are derived. 



Each product is covered in an interesting and thorough 

 manner. These products are: Wood pulp and paper, tanning 

 materials, veneers, slack cooperage (barrels not for liquids), 

 tight cooperage (barrels to hold liquids), naval stores, hardwood 

 distillation (produces charcoal, acetate of lime, wood alcohol and 



