CLARENCE J. WEST AND CALLIE HULL 17 



Wood: 



The acid hydrolysis of wood. E. C. Sherrard, Forest Products Labora- 

 tory, Madison, Wis. 150 entries, by author and subject. 1819-date. 

 Abstracts included. Incomplete. A part is to be published soon in a 

 departmental bulletin. 

 Wood Preservation: 



Wood preservation, with specific reference to protection against marine 

 borers. Clarence J. West. 1000 entries, by author. Two-thirds 

 complete. For consultation, write Committee on Marine Borer In- 

 vestigation, National Research Council, Washington, D. C. 

 Wood Tar: 



Wood tar and wood-tar oils. The Barrett Co., 40 Rector St., New York, 

 N. Y. 128 entries, by author and subject. 1871-date. Abstracts 

 included. 



Zein: 



Chemistry of zein. Arthur D. Little, Inc., Cambridge, Mass. 15 entries, 



by author. 

 Zeolites: 



Use of zeolites in water softening. Edward Bartow and G. C. Baker, 



State University of Iowa, Iowa City, Iowa. 214 entries, by author. 



1907-1921. Abstracts included. Practically complete. 



