88 DR. BEALE, ON THE TISSUES. 



walls of ducts may be set down as 'areolar or connective 

 tissue/ 



It would seem, then, that there are — 



1. Certain forms both of white and yellow fibrous tissue 

 which are produced directly from germinal matter as other 

 tissues, and in which masses of germinal matter may be 

 demonstrated at every period of life. 



2. Certain forms which may be regarded as the residue 

 of higher tissues which have ceased to discliarge active 

 functions. 



3. Certain forms of fibrous tissue (indefinite connective 

 tissue), as in the papillae of touch and taste, w^hich result from 

 changes having occurred in the terminal branches of the 

 nerve fibres. 



4. Certain forms of fibrous tisue, resulting from degenera- 

 tion occurring in the course of disease (abnormal) . 



5. An appearance of fibrous tissue produced by pressure, 

 crumpling and stretching of nerves, capillaries, and other 

 tissues. 



The following bodies, composed of germinal matter and 

 generally termed nuclei, are certainly present in the so-called 

 ' connective tissue ' of the skin of a young animal : — 1 . Nu- 

 clei of nerves. 2. Nuclei of capillaries. 3. Nuclei of white 

 fibrous tissue. 4. Nuclei of yellow fibrous tissue. 5. Nuclei 

 of fat cells. 6. Lymph, and white blood, corpuscles. In cer- 

 tain papillae all the nuclei present may be shown to belong to 

 nerves and capillary vessels, and between the elementary 

 muscular fibres of the young mouse this is also strictly true. 

 Dr. Beale does not think that in such situations there are any 

 special corpuscles which could properly be called areolar 

 tissue corpuscles, nor has he succeeded in obtaining any facts 

 which would favour the view that there are corpuscles of any 

 kind which perform special offices connected with the nutri- 

 tion of these higher tissues distinct from the ' cells ' or 

 ' nuclei ' (germinal matter) of the tissue itself. If, therefore, 

 the germinal matter of white and yellow fibrous tissue, carti- 

 lage, bone, &c., be termed ' connective tissue corpuscles,^ the 

 name must be applied to the masses of germinal matter of 

 epithelium, muscle, nerve, and all other textures. The nu- 

 trition of the so-called ' connective tissues ' is carried on in 

 obedience to the same general laws as the nutrition of other 

 tissues. 



Dr. Beale concluded his lectures with the following : 



GENERAL REMARKS AND SUMMARY OF CONCLUSIONS. 



In this course of lectures I have endeavoured to prove that 



