DISTINCTION BETWEEN ANIMALS AND PLANTS. 13 



which distinguish plants and animals, than that some 

 of them should fail to present the whole set of these 

 differences. 



We need say no more about the distinctions or 

 resemblances between plants and animals. They are 

 not likely to trouble the student of Zoology, except on 

 the field of the microscope. ' Here, it must be admitted, 



Fig. 3.— A Moving Plant, and its Moving Spores (Zoospoores). Pandorma 

 morum, one of the Green Algse ( x 400) . -4, A motile colony ; B, two zooepores 

 in process of conjugation, (from Prantl and Vines'" Text, book of Botany.")! 



it is difficult sometimes for the beginner to tell which 

 is which, or indeed, whether the object he is looking 

 at is either one or the other. It is not without reason 

 that one of the leading comparative anatomists of our 

 day begins his course of instruction by pointing out 

 the features which distinguish an air-bubble — which 

 interesting object is not infrequently mistaken by the 

 uninitiated for an Amoeba-; while every teacher of a 



