56 



THE CELL DOCTRINE. 



Figs. 4, 5, 6, 7, illustrate these views amply. 



FIG. 4. FIG. 5. 



FIG. 6. 



FIG. 7. 



Fig. 4, Molecular structure of the scum on its first appearance, in a 

 clear animal infusion. Fig. 5, Molecular structure of the same six hours 

 afterwards. The molecules are separated, and the long ones (so-called 

 vibriones) in active movement. Fig. 6, The same ou the second day. 

 Fig. 7, Filaments (so-called spirilla) formed by aggregation of the mole- 

 cules, in the same scum on the third and fourth days, all in rapid motion. 

 800 diam. linear. (From Bennett's Practice.) 



Prof. Bennett contends, also, that morbid growths 

 may easily be shown to originate in a molecular 

 blastema, though not to the exclusion of pre-existing 

 cells. The accompanying figures are sufficiently ex- 

 planatory. 



FIG. 8. 



FIG. 9. 



FIG. 10. 





Fig. 8, Nuclei imbedded in a molecular blastema. Fig. 9. Young fibre- 

 cells formed by the aggregation of molecules around the nuclei of Fig. 8. 

 Fig. 10, Cancer cells, one with a double nucleus. Fig. 11, Histolytic or 

 so-called granule-cells, breaking down from fatty degeneration. 250 diam. 

 linear. (From Bennett's Practice.) 



It should be stated also, that this author in com- 

 mon with others not accepting the cell doctrine in 

 its entirety, admits the production of cells by buds, 

 division, or proliferation, without a new act of gene- 

 ration, and that " this fact comprehends most of the 



