iS 7 



II. THE NON-LIVING AND THE LIVING CON- 

 TRASTED. 



THE main object I have in view in this and some other 

 works, is to call attention to the irreconcilable difference 

 between the living and the non-living, and to point out the 

 matter of a living body which is in a living condition, and 

 show how it may be distinguished from the matter of its 

 body which has already ceased to live. Of the matter 

 which constitutes the bodies of man and animals in the 

 fully formed condition, probably more than four-fifths are in 

 the formed and non-living state. All this was, however, 

 living at an earlier period of existence. Much of it ceased 

 to live long before the tissue came under examination, and 

 was added to the gradually accumulating formed matter of 

 which the several textures are constituted. 



The terms Living Matter, Formed Matter, and Pabulum. 

 I have already explained that I could not use the term 

 protoplasm as synonymous with living matter, because many 

 kinds of formed matter had been termed protoplasm as well 

 as the living matter. From the time when my researches 

 were made until now, the confusion in the use of the word 

 protoplasm has been increasing. Almost every form of 

 tissue has been thus called, as well as every kind of ger- 

 minal or living matter. And it would probably add to the 

 existing confusion if an attempt were now made again to 

 alter the meaning of the word ; so that, upon the whole, it 



