GENERAL DIRECTIONS 3 



bered metal tag will be given to you for identification. 

 When ready to leave the laboratory wrap the animal in 

 cheese cloth and tie it with a cord. Have the cord long 

 enough so that one end can be left to which a tag bearing 

 your name may be tied. When first starting work on a 

 specimen wash it off in water. Always keep the specimen 

 moist because drying ruins the animal for dissection. 

 Specimens which are not properly cared for become diffi- 

 cult to dissect. 



5. Corrections to Drawings. 



When you have finished a plate before leaving that sec- 

 tion of the manual refer it to the instructor at a convenient 

 or stated time and have it checked for errors. Much of the 

 drawing work is checked in the laboratory as dissection 

 proceeds. 



