112 



INDEX 



Cysts, resistance of, 59 

 Cytoplasmic granules, 28 



Depression periods, 51 

 Drought, influence of, 49 et seq. 



Encystment, 17, 47 et seq. 

 Environment, effect of, 17, 29, 56, 

 etc. 



adverse conditions of, 28, 46 



suitable conditions of, 56, 57 

 Excystation, 17, 49, 56 et seq., 



76 



action of choline on, 63 



effect of alkalinity on, 60 



ferments, the cause of, 58, 68, 

 71,76 



food, the stimulus to, 57 



influence of bacterial products 

 on, 64 



rate of, 58 



Ferments, the cause of excysta- 

 tion, 58, 68, 71, 76 



possible action of, in reproduc- 

 tion, 71, 72, 74, 75, 76 



Fixation, new method of, 26 

 Food, 38 et seq., 68, 69, 73 

 Formalin, 91 



Gases, apparatus for testing effect 



of, 23 



Gelatin-liquefying bacteria, 65 

 Germicides, 91 et seq. 



Heat, action of, on cysts, 84, 90 

 Hydrochloric acid, 66, 84, 85, 93 



Jelly method, advantages of, 23 

 staining by the, 24 



Karyosome, 27, 68 



Kinetics, 37 et seq., 55, 74, 76 r 

 78, etc. 



Live slide, 20 



Media for cultures, 24 



Mercuric chloride, action of, on 



cysts, 83, 92 



Methods of examination, 18 et seq. 

 Migration of amoebae, 89 

 " Moist-air-chamber " method, 21 

 Multiple fission, 34 



Neurine, 70 

 Nucleus, 24, 25, 28 



Osmosis, 48, 51, 58 



Paraffin wax cell, 22 



Parasite of amoeba, 102 et seq. 



Pepsin, 68 



Petri dish, brass, for special ob- 

 servations of amoebae, 23 



Polytoma granulosa, 8, 47 



" Pure cultures " of amoeba, 71, 

 77 



"Pure mixed cultures" of amoebae, 

 77 et seq. 



Radiosa types, 42 



Salts, action of, 29, 58 

 Serum, normal horse, 72, 74 

 Sex, possible differentiation of, 3& 

 Sporing bacteria, removal of, 81 

 Staining, jelly method of, 24 

 Starvation, 51 



Tyrosin (auxetic), 39, 40, 72, 73, 

 etc. 



Volutin granules, 28 



Printed 6y Uazell, Walton A Yiney, Ld., London and Ayletbury. 



