128 GENERAL ANATOMY. 



minative inflammation. It sometimes happens that foreign 

 bodies remain in the cellular tissue, either on account of the 

 lightness of their specific gravity, or of the density of the sur- 

 rounding tissue: a membrane, in this case, is formed around 

 them. 



The cellular tissue contains, in some cases, foreign animated 

 bodies or worms : the cysticercus cellulosa, so called on ac- 

 count of its seat in the cellular tissue, ihejllaria medinensis, 

 or little dragon, whose existence can not be questioned, have 

 been found in it, and in animals the larvae of the oestrus. 



The cellular tissue may experience various changes. The 

 serous, fibrous, bony, and cartilaginous transformation, which 

 are developed in the cellular tissue, will be described with the 

 natural tissues to which they belong. 



The cysts, whose seat is in the cellular tissue, will be like- 

 wise spoken of, when treating of the serous and tegumentary 

 membranes, to which they are very analogous. 



When an organ happens, accidentally, to disappear, we say 

 it is transformed into cellular tissue; this is, perhaps, not ex- 

 actly correct; the cellular tissue in this case merely taking the 

 place of the wasted organ, which previously kept it at a distance. 



Various degenerations may be regarded as especially apper- 

 taining to the cellular tissue: it is this tissue which appears to 

 be their base, for they are every where similar. As they are 

 common, however, to all the organs, I shall speak of them 

 when I have done with the history of all the other tissues. 

 Wherever, in the interstices of the organs, the cellular tissue 

 is free, it is affected by these degenerations, as well as in the 

 places where it constitutes a part of the organs themselves. 



SECTION II. 



OF THE ADIPOSE TISSUE. 



153. The adipose tissue, so called on account of the fat 

 (adeps) it contains, results from Ihe re-union of very small, 

 microscopic vesicles, clustered and grouped in greater or less 



