AN INTRODUCTION 



TO 



ZOOLOGY 



WITH DIRECTIONS FOR PRACTICAL WORK 

 (INVERTEBRATES) 



BY 



ROSALIE LULHAM, B.Sc. 



LECTURER IN NATURAL HISTORY AT THE FROEBEL EDUCATIONAL INSTITUTE 



WITH ILLUSTRATIONS BY V. G. SHEFFIELD 



MACMILLAN AND CO., LIMITED 

 ST. MARTIN'S STREET, LONDON 



