

LECTURE I. 



FEBRUARY 10, 1858. 

 CELLS AND THE CELLULAR THEORY. 



Introduction and object Importance of anatomical discoveries in the history of 

 medicine Slight influence of the cell-theory upon pathology Cells as the ulti- 

 mate active elements of the living body Their nature more accurately defined 

 Vegetable cells ; membrane, contents, nucleus Animal cells ; capsulated 

 (cartilage) and simple Nuclei of Nucleoli of Theory of the formation of 

 cells out of free cytoblastema Constancy of nucleus and its importance in the 

 maintenance of the living cell Diversity of cell-contents and their importance 

 as regards the functions of parts Cells as vital unities The body as a social 

 organization Cellular, in contradistinction to humoral and solidistic, pathology. 



Explanation of some of the preparations Young shoots of plants Growth of plants 

 Growth of cartilage Young ova Young cells in sputa. 



GENTLEMEN, Whilst bidding you heartily welcome to 

 benches which must have long since ceased to be familiar 

 to you, I must begin by reminding you, that it is not my 

 want of modesty which has summoned you hither, but 

 that I have only yielded to the repeatedly manifested 

 wishes of many among you. Nor should I have ventured 

 either to offer you lectures after the same fashion in which 

 I am accustomed to deliver them in my regular courses. 

 On the contrary, I will make the attempt to lay before you 

 in a more succinct manner the development which I my- 

 self, and, I think, medical science also, have passed through 

 in the course of the last fifteen years. In my announce- 

 ment of these lectures, I described the subject of them in 



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