INTRODUCTION. 



This guide is designed for use in my own classes, and 

 it sets forth an outline of the work done in Zoology. No 

 claim is made as to the originality of the subject matter 

 except in the method of presenting, it, and the order in 

 which it is giyen. . It has been in use In our laboratory 

 for. several years in mimeographic form. Type forms are 

 taken of the different groups, and carefully studied. The 

 classification of animals conforms to tha^-^of tbe "Manual 

 of Zoology" by Parker, and Haswell, which is used as a text 

 for plasB work. Any other good text may be used. All 

 instructions for the use of apparatus, etc., are left to be 

 supplied by the teacher in charge. , , 



Acknowledgment is here due Dr. W, P. Copeland, J. E. 

 McDaniel, Ph. M., and A. A. Johnson,, Ph. B., former assist- 

 ants of mine, and my present assistants, J. A. Badertscher, 

 and C. E. Hayden, for many valuable suggestions In the 

 working. of t^ie manual before goinf to print. 



—The Author. 

 Ohio University, January, 1909. 



