LABORATORY PROBLEMS L\ ("1\ IC 



BIOLOGY 



I. DIRECTIONS TO THE STUDENT FOR KEEPING 



NOTES IN BIOLOGY 



It is suggested that two notebooks be used. In one, the home 

 notebook, all written notes, either dictation notes or those looked 

 up frorn original sources, should be placed. The other, a lal)ora- 

 tory notebook, should be used for drawings and written work 

 done in class as well as experiments and demonstrations performed 

 in the laboratory. The illustrations on pages 20 and 21 will serve 

 to indicate the appearance of a blank page after laboratory w jrk 

 has been done. 



All written work should be in ink, and great care should be 

 exercised not only in the construction of good English sentences, 

 but also in writing. A careless, slovenly page may spoil otherwise 

 excellent work. 



Especial care should be exercised in making your drawings. 

 A hard pencil (HHHHH) sharpened to a needlelike point shouhl 

 be used. Do not shade your drawings. Make each line mean 

 something definite. We do not want artistic sketches so much as 

 we want accurate representations of what ytni see. Uememl)er a 

 good workman uses good tools; therefore use a sharp, pencil, a 

 clean eraser, and an active hand and brain. Drawing witliout 

 thought of what you are doing is only busy work and does you 



no good. 



Among the most important of your laboratory exercises are your 

 experiments. An experiment should have four stei)s, each of 

 which is separated from each of the others by a paragraph headmg. 



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