LIST OF ILLUSTRATIONS. 



JANUARY.— Chapter II. 



PAGE 

 EUGLEN.E 21 



VoKTicELL^ . . . . . . . 29, 30, 31, 32 



eotifer vulgaris 33 



Gizzard of Eotifer . . . . . . . .38 



FEBEUAEY.— Chapter III. 



Stinging Organs of Polyp 45, 47, 48 



Anguillula stung by Polyp 52 



Paramecium 54 



MAECH.— Chapter IV. 

 Pterodina patina 60 



GrIZZARD OF PtERODINA 61 



Tail of Patina ......... 62 



Metopidia 65 



Trichodina pediculus ........ 65 



Cothurnia imberbis 67 



Salpina redunca 70 



APEIL.— Chapter V. 



Floscularia ornata 73 



Ch.etonotus larus 83, 84 



COLEPS hirtus 85 



euplotes patella 86 



Stylonichia 86 



