2 LABOR ArORY STUDIES IN ZOOLOGY 



niiitz; of the laboratory period report should be made to the 

 instructor concerning any part of the laboratory equipment 

 which is missing or out of repair. 



Whether the laboratory is a clean, quiet, and comfortable 

 place to work depends upon each member of the class. 



All laboratory drawings and notes must be handed in at the 

 close of each laboratory period. They will be corrected and 

 returned at the next session. No credit will be given for such 

 reports after they have been taken from the laboratory. Labora- 

 tory reports are judged with regard to completeness, correctness, 

 and neatness. Technique and general attitude toward work and 

 laboratory associates reveal the character of the worker. 



In the upper right-hand corner each sheet of drawings or notes 

 must bear the name of the student, the section, and laboratory 

 number. Each sheet should also bear at the top and center the 

 name of the study upon which it is a report. 



RECORD OF OBSERVATIONS 



Drawings. — Some record of studies made in the laboratory is 

 always necessary either as a report upon the work accomplished 

 or as information to be used in later study. When time permits 

 there is nothing quite so satisfactory as an original drawing, for, 

 as an eminent biologist long ago expressed it, "the best eye for a 

 naturaUst is the point of a lead pencil." But one need not be 

 an artist in order to produce satisfactory outline drawings 

 delineating laboratory observations. Indeed, most students 

 who find their way into biological courses have had no previous 

 training in drawing. The first attempt at drawing may be 

 poor but it is likely that the fault Ues in poor observation and 

 thmking rather than in a lack of abihty to produce simple dia- 

 grams. Improvement in observation is accompanied by a 

 corresponding improvement in drawing. No attempt at drawing 

 should be made until the object of study is understood. An 

 attempt to draw will lead to closer observation. 



Beginners often err in making drawings too small and attempt- 

 ing to represent too much detail. In the outUnes which follow 

 appropriate dimensions are suggested in connection with the 

 drawings required. Each drawing should be so located upon the 

 page and in its relation to other drawings which may be planned 

 for the same sheet that a balanced appearance of the plate may 

 be the result. Adequate space for all labels should be provided. 



