Vlll LIST OF ILLUSTRATIONS. 



FIGUKES IN THE TEXT— co7itim(ed. 



Page 170, Transverse section through a slide prepared according to D. B. 



Scott's method. 

 190. Diagrammatic sketch of Troc7ios2jJi(sra solstitialis. 

 239. G. T. West's table stage. 

 310. Diagram showing Scajyholeheris miicronata using the surface-film 



of water for support. 



318. Dr. Fiori's hand microtome. 



319. Internal arrangements of the foregoing. 

 388. Structural division of cell contents in bacilli of the bubonic 



plague, etc. 

 397. Diagram showing glass trough with a water-flea suspended from 

 a pin. 



399. Three diagrams illustrating the swimming peculiarities of 

 Dajjlmia. 



400. Three diagrams illustrating the swimming peculiarities of 

 Simoce2}lialus. 



408. Diagram illustrating the production of polarised light effects 

 by diffraction. 



409. Diagram ilhistrating a method of blending spectral colours. 

 415. Diagrammatic section through Ashe's camera lucida. 



