CONTENTS xJ 



CHAPTER 12 • Isotopic Tracers 160 



The tracer experiment. Radioactivity and radiation. The de- 

 velopment of tracer experimentation. Selection of tracer iso- 

 topes. Commonly used tracers. Detection methods. Laboratory 

 safety. Selected references. 



CHAPTER 13 • Electrical Measurements 173 



Electrical theory. Electronic systems. Input transducers. Out- 

 put transducers. Power supplies. Amplifiers. Potentiometric 

 techniques. Circuit diagrams. Selected references. 



CHAPTER 14 • Calculation of Data 190 



Amounts of biological material. Manipulations of raw data. 

 Aids in calculation. Mathematical treatments. 



CHAPTER 15 • Statistical Treatments 199 



Probability. The normal curve. Parameters of samples. Tests 

 of significance. Analysis of variance. Regression and correla- 

 tion. Other statistics. The application of statistics. Selected 

 references. 



CHAPTER 16 • Experimental Design 212 



Sampling and randomization. Some simple designs. More 

 complex designs. Factorial experiments. Selected references. 



CHAPTER 17 • The Manuscript 223 



Organization of the paper. The job of writing. Presentation 

 of results. Typing the manuscript. Title and abstract. Selected 

 references. 



Bibliography 232 



Index 235 



