Contents 



Preface ^^ 



Chapter 



1 Introduction ^ 



Relationship of protozoology to other fields of 

 biological science, p. 5; the history of proto- 

 zoology, p. 9. 



2 Ecology 1^ 



The free-living Protozoa, p. 16; the parasitic 



Protozoa, p. 23. 



3 Morphology ^1 



The nucleus, p. 32; the cytosome, p. 36; loco- 

 motor organellae, p. 40; fibrillar structures, 

 p. 51 ;protective or supportive organellae,p. 59; 

 hold-fast organellae, p. 65; the parabasal ap- 

 paratus, p. 66; the blepharoplast or centriole, 

 p. 67; the Golgi apparatus, p. 69; the chon- 

 driosomes, p. 71; the contractile and other 

 vacuoles, p. 73; the chromatophore and asso- 

 ciated organellae, p. 78. 



4 Physiology ^^ 



Nutrition, p. 84; the reserve food matter, p. 

 94; respiration, p. 96; excretion and secretion, 

 p. 98; movements, p. 101; irritability, p. 109; 

 regeneration, p. 114. 



5 Reproduction 11° 



Nuclear division, p. 118; cytosomic division, 

 p. 137; colony formation, p. 140; asexual re- 

 production, p. 142; sexual reproduction and 

 life-cycles, p. 143. 



6 Variation and heredity 162 



7 Phylum Protozoa 1^1 



Subphylum 1 Plasmodroma 171 



Class 1 Mastigophora 171 



Subclass 1 Phytomastigina 173 



Order 1 Chrysomonadina 173 



ix 



