PART 1.7 Description of the Illustrations. 61 



FIGCBES. NO . 



Movements exhibited by the corpuscles associated with the flocculi when freed from the 



meshes of tlie membranaceous substance . . . xliv. 



Appearance of the corpuscles associated with the focciili after the addition of weak acetic 



acid and iodine xlv. 



Plate XIV. 



Various objects seen in a cholera stool. 



The elongated form very commonly observed of the corpuscles imbedded in the flocculi. 



Some are granular, others are hyaline ........... xlvi. 



Appearance presented by the preparation (xlvi) after the addition of iodine solution . . xlvii. 



Sarciiue, as commonly observed in cholera and other stools ....... xlviii. 



Accumulations of a fatty nature ............. xlix. 1 



Little pellets which possess the power of altering in form and position „ 2 



Forms assumed by one of the foregoing ........... „ 



Very active animalculae ,, 4 



Various forms assumed by the gelatinous-looking substance depicted at xlix, No. 3. . . 1. 



Animalculaj in a globular still condition ........... H. 1 



Various forms assumed by one of the foregoing „ 2-5 



Plate XV. 



VariotiK stages in the existence of the animalcides which Iiave been observed in alvine dejections. 



The aspects usually presented by these animalculae when seen in evacuations . . . lii. 

 Appearance of the preparation, delineated at figures xlix-lii on the fourth day ; many of 



these jelly-like masses are animalculse which have become inactive ..... liii. 



Various forms assumed by a single animalcule immediately before it became inactive, as at liii liv. 



Eifect of re-agents on the masses depicted at liii ......... Iv. 



After the addition of acetic acid ............. 1-2 



absolute alcohol „ 4 



ether and alcohol „ 3 



Mr. Berkeley's growing-cell .............. Ivi. 



Three stages in the " life history " of the animalculae, above described, which were followed 



out by continuous observation in the Berkeley-cell Ivii. 



Plate XVI. 



Cholera stool : Healthy blood added to cholera stool : Stool of healthy person. 



Large granular cells, amongst which very active animalculae are seen (cholera evacuation) . Iviii. 

 Cells associated with the foregoing (Iviii) and closely resembling them, but exhibiting 



pseudopodial movements lix. 



With a single vesicle-like protrusion „ 1 



Exhibiting protrusions from more than one portion of its substance „ 2 



The projected pseudopod appears to have passed through an external envelope in one case 



(3), whilst the projection seems to consist of the external layer itself in the other (4) ,, 3-4 



Projections which were no longer retractile .......... „ 5 



A large corpuscle presenting movements of an amoeboid character „ 6 



Blood-cells altered in appearance ; the result of osmosis „ 7 



Animalcule (cholera stool) „ 8 



Blood-cells Ix. 1 



One of the blood-cells from the group (No. 1) altered in appearance by one of the animalcules „ 2-4 

 Animalculae with blood-cells intimately adherent to tlieir substance. The animalculae in this 



case are somewhat larger than ordinarily met with (cholera stool) „ 6 



Appearance assumed by blood corpuscles from a healthy person, which had been added to a 



portion of filtered cholera stool Ixi. 



