Production Note 
Comell University Library produced this volume to 
replace the irreparably deteriorated original. It was 
scanned at 600 dots per inch resolution and 
compressed prior to storage using CCITT/ITU 
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 
United States Department of Education, Higher 
Education Act, Title I-C. 
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, 
1991-1996, Wallace C. Olsen, series editor. 
