SOME FUNDAMENTAL PROBLEMS OF 

 CELLULAR PHTSIOLOGT 



I SHALL not try to tell you how highly I 

 value the privilege of speaking on this occa- 

 sion. Nor shall I attempt to pay a tribute to him 

 whose memory we recall today, for this has been 

 done by others far better than I could hope to do 

 it. But perhaps I may be permitted to say that in 

 all the years of our personal acquaintance he 

 seemed to me as one who worked in the spirit 

 of Pasteur, with keen interest in both theoretical 

 and practical researches, and in deep sympathy 

 with every attempt to study the foundations 

 upon which all applied science must rest. In con- 

 sequence I feel it appropriate to dwell today 

 upon some fundamental aspects of biology. 



Two things of note in the recent development 

 of biology may serve as my text. One is the in- 

 creasing attention paid to the fundamental 

 activities of the cell. The other is the growing 



