INTRODUCTION. 13 



2. Formulate each problem definitely. 



3. Describe the means used in the solution of the problem. 



4. Enumerate the facts observed through the help of the 



means employed. 



5. Seek for and note causes and inter relations or the facts 



as far as possible. 



6. Differentiate the essential from the incidental. 



7. Formulate conclusions from the collected data. 



3. Make generalizations as far as they are justifiable. 



Agood note book should possess thefollowing qualities: 



a. It should be complete, containing an account of every 



problem studied. 



b. It should be full, containing a sufficient amount to 



guide another in performing the same experiments 

 and in verifying the facts and conclusions noted. 



c. It should be logically arranged. 



d. It should be as neat and artistic as the student can 



make it in the time which he can devote to it. 



