Production Note 

 Cornell University Library produced this 

 volume to replace the irreparably 

 deteriorated original. It was scanned using 

 Xerox software and equipment 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 in 

 part 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. 



