i8 SOME MINUTE ANIMAL PARASITES 



of these most interesting Protozoa may now be 

 considered. Naturally the choice of material from 

 so wide a range of organisms is a matter of difficulty, 

 but it will be our endeavour to select material 

 presenting as much variation as possible, and being 

 of interest economic or otherwise without refer- 

 ence to strict schemes of classification. 



