viii PREFACE 



tempted to make suitable textual reference to appropriate sections 

 rather than redevelop the subject in the additional context. 



Basic training in inorganic and organic chemistry is assumed in 

 students using this book. Although it is intended to provide a general 

 knowledge of biochemistry for students in the agricultural sciences, an 

 effort has been made to orient the treatment broadly enough for ele- 

 mentary courses intended for students from other disciplines. As is 

 customary in textbooks, most chapters are relatively complete units 

 permitting omissions in conformance with the lengths and needs of 

 particular courses. 



We are indebted to Anita Zellers and Janet Powlus for typing the 

 manuscript. 



M. Frank Mallette 

 Paul M. Althouse 

 Carl O. Clagett 

 University Park, Pennsylvania 

 May, 1960 



