246 Mr. H. J. Carter on the Organization of Infusoria. 



Fig, 50. Euglena viridis, after the formation of ovules ; individuals still 

 adhering to each other and to the watch-glass in which this was 

 observed. , 



Fig. 51. Ditto, subsiding into spherical encystment, 



IHg. 52. Ditto, encysted. (Although one of each of these pairs is left 

 blank, both individuals were alike in nature.) 



Fig. 53. Crumenula texta, Duj., showing sarcode and its granules, nucleus, 

 vesicula, red body, and (a) glair-cell ; [b] glair-cell more mag- 

 nified to show its nucleated character. Length of animalcule 

 about 1 -560th of an inch. (For a figure of the same filled with 

 ovules or " embryonic cells," see loc. cit.) Ovules about 1 -2300th 

 of an inch in diameter. 



Fig. 56. Ditto, effete, containing ovules endowed with locomotive power ; 

 probably from the development of a cilium, which in this instance I 

 could not see for want of a microscope of higher power, {b, b) red 

 grains, round, composed of material like that of the red body ; (c, c?, e) 

 dififerent phases of the ovule of this specimen more magnified. 



Fig. 57. Euglena viridis (large specimen) encysted and filled with ovules. 



fig. 58. Internal, transparent, tough sac holding the ovules (probably a 

 transformation of the parent) : («) portion of the contents of the 

 sac to show that they consist of ovules of different sizes, and 

 granules. 



Fig. 59. Ovule more magnified to show its oblong or quadrilateral form in 

 Euglena viridis : {a) capsule ; (b) film of homogeneous matter 

 lining its interior ; (c) pellucid area with central granule. (This 

 ovule has somewhat progressed in development.) 



Fig. 60. Effete cell of Crumenula texta, showing that it possesses a ske- 

 leton cell composed of sigmoid fibres arranged spirally, so as to 

 assume a conical form : (a) end view j {b, c) form of fibres ; 

 (d) portion of a broken cell. Is not this analogous to the spiral- 

 fibre of the vegetable cell ? 



Fi^. 61. Longitudinal deduplication of Euglena viridis during active life. 



Fig. 62. Euglena agilis, H. J. C. (n. sp. ?), from the brackish water of the 

 marshes of Bombay : (a, b, c) Protococcus or still-form after 

 having been kept in a watch-glass and supplied with fresh water ; 

 (a) transverse division showing that the red body is not deve- 

 loped in the lower half; (c) ditto quadruple, longitudinal divi- 

 sion showing that the red body is equally multiplied ; (d) linear 

 development (probably by longitudinal division, as the red body 

 is present in each cell). Animal 1 -600th of an inch in length. 



Fig. 63. Serpicula verticillata, Roxb. Spine-cell of leaf showing the proto- 

 plasmic cell or primordial utricle of Mohl. (a) nucleus ; {b) green 

 granules in the reticulate molecular protoplasm (the former cor- 

 responding to the " granules," and the latter to the molecular 

 sarcode of the amoebous cell, figs. 1, 2) (?). 



Fig. 64. Ditto, cell of body of leaf showing protoplasmic cell in rotatory 

 motion, carrying round with it chlorophyll-bearing cellules (pro- 

 bably only an enlarged form of the green granules of the spine- 

 cell, fig. 63), imbedded in the protoplasm promiscuously. These 

 two figures are for comparison with the amcebous cell, figs. 1 & 2. 



Fig. 65. Paramecium aurelia, Ehr. : («) granules; (b) digestive globules 

 containing food ; (c) buccal cavity drawing in particles of food 

 for the formation of the new digestive globule at its lower extre- 

 mity. Length about 1-1 70th of an inch. 



Fig. 66, Ditto; diagrammatic view under compression, showing {a, a) vesi- 



