76 THE CELL DOCTRINE. 



the views which have since been further elaborated 

 and become permanently associated with his name. 

 These views were published, in part, in Beale's 

 "Archives of Medicine," and in September, 1861, 

 in a volume " On the Structure of the Simple Tis- 

 sues of the Human Body," in the preface to which 

 he says " he thinks it right to state that the conclu- 

 sions which have now assumed a definite form have 

 gradually grown upon him during the course of ob- 

 servations, extending over a period of several years. 

 In fact some of the drawings in this volume, and 

 others which have been published elsewhere, equally 

 favorable to this view, were made long before any 

 specific theory had been arrived at." 



The "cell" or "elementary part" as Dr. Beale pre- 

 fers to call it, is composed of matter in two states, 

 matter w T hich is forming, and matter which is formed; 

 matter which has the power of growing \>y producing 

 matter like itself out of pabulum or food, and matter 

 which possesses no such power, but results from the 

 death of the forming matter. The former is known 

 as germinal or living matter, the latter as formed mat- 

 ter. The former, in varying quantity in different 

 cells, is central in its situation (see Plate, Fig. 17), 

 and includes what has been called by others nucleus, 

 cell contents, protoplasm, endoplast. The latter, also 

 present in different quantity in different cells, is pe- 

 ripheral (Plate, Fig. 17), and includes what is known 

 as cell wall, periplast, intercellular substance, and 

 products of secretion. 



In its structural characters, germinal matter is soft, 

 transparent, colorless, and as far as can be determined 



