4 INTRODUCTION 



Students should keep laboratory note books when laboratory 

 work is given. A deJfinite order should be followed in writing up 

 each exercise as follows: 



Exercise No. — (Number exercises in order performed.) 

 Object of exercise. 



Procedure (state briefly how exercise was conducted). 

 Results (make use of sketches and tabulated data). 

 Conclusions (facts brought out or principles illustrated). 

 Questions (write out questions with answers). 



