244 MANUAL OF ANIMAL BIOLOGY 



(a) Draw on only one side of the paper, using a well-sharpened drawing 



pencil. 



(b) Arrange the drawings as neatly and evenly on the page as possible, 



giving each plenty of space. 



(c) Leave at least one inch margin around the edges of the sheet. 



(d) Always label every drawing and each of its parts. 



(e) Remember particularly that accuracy and neatness are two of the 



most important factors in good laboratory work. 



(/) See that the laboratory room number, the seat number, and your 

 name and class are placed on the upper right-hand corner of each 

 sheet of drawings. 



((/) The drawings should be placed in a loose-leaf notebook. The direc- 

 tion sheets in this manual are perforated along the left edge so 

 that, if desired, one can be removed for each exercise and mounted 

 in the loose-leaf notebook opposite the sheet with the day's draw- 

 ings. 



