APPENDIX. 549 



Structure of the Bulb of the Hair. 



Further opportunities of examination have satisfied the 

 author that the vesicle which he has described as forming 

 a portion of the bulb of the hair has no existence, and that 

 this rests immediately upon a compound vascular and nervous 

 papilla. 



The Synovia! Fringes. 



The synovial fringes consist of branched and elongated 

 threads or filaments, which taper to a point, and each of 

 which is supplied with one or more, according to its size, 

 contorted and looped blood-vessels ; these, however, do not 

 reach the whole length of each thread, but terminate at 

 one third or one half its length. It is in the termina- 

 tions of these filaments, according to the observations of 

 Mr. Rainey, that those cartilage- like bodies sometimes found 

 loose in the joints, especially the knee joint, are first formed. 

 The threads or filaments of which the synovial fringes are 

 constituted are of such length and so much branched, that 

 they might, at first sight, be mistaken for those of some con- 

 ferva of the genus Cladophora. 



On the Anatomy of the Sudoriparous Organs. 



Mr. Rainey * describes the duct of the sudoriparous glands 

 as consisting of two distinct portions, an epidermic and 

 dermic. 



The epidermic portion is of a conical form, the base being 

 directed towards the surface, and the apex situated in the 

 midst of the cells which form the deep layer of the epidermis ; 

 it is constituted of cells which are flattened and elongated, 

 and the long axes of which are disposed in the direction of 

 the length of this portion of the duct : below, near its ter- 

 mination, the cells arc thicker and less flattened. 



* On the Minute Anatomy of the Sudoriparous Organs. By 

 G. Rainey. Royal Med. and Chirur. Society. See "Lancet," 1849. 



