8 CONTENTS. 



PAGE 



METHODS OF STAINING 63 



Giemsa's Stain 63 



Other Methods 64 



Impregnation with Silver 65 



Indian Ink Method 66 



EXAMINATION OF LIVING SPIROCH^TES 66 



Dark-field Examination 66 



Intra-vitam Staining 67 



PSEUDO-SPIROCH^TES 67 



CLASSIFICATION ' 69 



SECTION II. 



SYSTEMATIC DESCRIPTION OF SPECIES. 



LARGE SPIROCH^ETES . , 73 



Spirochaeta Plicatilis 73 



Spirochaeta Daxensis 76 



Spirochaeta Balbianii 77 



Spirochaeta Anodontae (Spirochaeta Spiculifera) .... 79 



Spirochaetes in Various Molluscs 82 



Spirochaeta Pinnae 84 



Spirochaeta Mactrae 84 



Spirochaeta Pectinis 86 



Spirochaeta Interrogationis 86 



Spirochaeta Polyspira 86 



SMALL SPIROCH^TES OR SPIRILLA 86 



Spirochaeta Obermeieri 86 



Spirochasta Duttoni (Spirochaeta Novyi, Spirochaeta 



Carteri) 88 



Spirochaeta Pitheci 90 



Spirochaeta Anserina 90 



Spirochaeta Gallinarum 91 



Spirochaeta Lagopodis 93 



Spirochaeta Lovati . 93 



Spirochaeta Vesperuginis 93 



Spirochaeta Lutrae 94 



Spirochaeta Theileri and Allied Forms 94 



Spirochaeta Suis 95 



Spirochaeta Laverani . 96 



Spirochaeta Muris 96 



Spirochaeta Minor 97 



Spirochaetes in Mouse-cancer 97 



Spirochaeta Gondii 98 



Spirochaeta Culicis 98 



