1893. NUCLEUS IN UNICELLULAR ORGANISMS. 179 



The non-nucleated saprophytes (as Fig. i, B) may, perhaps, in 

 some sense, be looked upon as wholly nuclear, although I have been 

 unable to discover anything but the most faint traces of structure 

 within them. They present the constant appearance of the nucleus 

 when in a totally inactive state, as shown in Fig. 13. 



.This appears to present the activities of the nucleus in its 

 simplest condition as accessible to our present means. That there 

 are phenomena far more delicate than those here recorded, we can 

 scarcely doubt, but it would- appear that it is in the unicellular 

 •organisms that the first lessons in cell-history may be learnt. 



W. H. Dallinger. 



^2 



