AN INTRODUCTION 



TO 



ZOOLOGY 



WITH DIRECTIONS FOR PRACTICAL WORK 



(INVERTEBRATES) 



BY 



ROSALIE LULHAM, B.Sc. 



LECTURER IN NATURAL HISTORY AT THE FROEBEL EDUCATIONAL INSTITU/TE 



WITH ILLUSTRATIONS BY V. G. SHEFFIELD 



MACMILLAN AND CO., LIMITED 

 ST. MARTIN'S STREET, LONDON 



