CONTENTS OF No. 197.-New Series. 



MEMOIRS : 



PAGE 



The Life-cycle of"Cystobia" Irregularis (Mincb.), together with 

 Observations on other "Neogamous" Gregarines. By H. M. 

 Woodcock, D.Sc.Lond. (With Plates 1—6) . . 1 



The Anatomy ofOncliolaimus vulgaris, Bast., with Notes on two 

 Parasitic Nematodes. By P. H. Stewart, M.A., B.Sc, M.B., 

 Lieut. Indian Medical Service. (With Plates 7—9) . . 101 



The Hsemoflagellates : a Review of Present Knowledge relating to 

 the Trypanosomes and allied forms. By H. M. Woodcock, 

 D.Sc.Lond. (With Text-figures.) {To be continued) . . 151 



