Popular Science Montldy 



591 



Above: Gun stocks in the rough. Walnut "flitches," 

 from American forests, drying before being con- 

 verted into weaix)ns for the European armies 



At right: Collecting the "crude" rosin from which 

 our turpentine, pine tar and similar products are 

 made, for home commercial use and for exportation 



^cSx^t 'n^^Jt^^^l"^ sJiPT^ent Prices now paid for rosin in Europe are almost fabulous on 

 account of its scarcity. It is used in making shrapnel, cheap soaps, and as a size for paper 



ons of wood to produce one ton of acetone. 

 >ince all the acetone employed as a solvent 

 3 obtained from acetic acid, enormous 

 I uan titles of wood are demanded for the 

 upply of the solvents used in ammunition 

 nanufacture. 

 The quantities of alcohol and ether used 



for solvents for cellulose nitrates far surpass 

 the consumption of acetone. Since ether is 

 made from alcohol the raw material for its 

 production is of great importance. 



It is estimated that during the present 

 year 40,000,000 gallons of denatured alcohol 

 will be used at home while huge quantities 



