ESSENTIALS OF ZOOLOGY 



FOR STUDENTS OF MEDICINE 

 AND FIRST YEAR STUDENTS 



OF SCIENCE 



BY 



ALEXANDER MEEK, D.Sc. 



/ f 



PROFESSOR OF ZOOLOGY, UNIVERSITY OF DURHAM 



WITH 145 ILLUSTRATIONS 



LONGMANS, .GKEEN AND CO 



39 PATEENOSTEE EOW, LONDON, E.G. 4 



NEW YORK, TORONTO 



BOMBAY, CALCUTTA AND MADRAS 



1922 



All rights reserve! 



