Production Note 

 Cornell University Library produced this 

 volume to replace the irreparably 

 deteriorated original. It was scanned 

 using Xerox software and ecfuipment at 600 

 dots per inch resolution and compressed 

 prior to storage using CCITT Group 4 

 compression. The digital data were used 

 to create Cornell's replacement volume on 

 paper that meets the ANSI Standard 

 Z39. 48-1992. The production of this 

 volume was supported by the National 

 Endowment for the Humanities. Digital 

 file copyright by Cornell University 

 Library 1994. 



Scanned as part of the A.R. Mann Library 

 project to preserve and enhance access to 

 the Core Historical Literature of the 

 Agricultural Sciences. Titles included 

 in this collection are listed in the 

 volumes published by the Cornell 

 University Press in the series THE 

 LITERATURE OF THE AGRICULTURAL SCIENCES, 

 1991-1995, Wallace C. Olsen, series 

 editor. 



