JOURNAL OF MICROSCOPICAL SCIENCE. 



EXPLANATION OF PLATE XVII, 



Illustrating Dr. Sangster^s Paper on Observations on the 

 Muscular Coat of Sweat-Glands, 



Fig. 1. — From a transverse section through the skin of a sheep (sheep- 

 pox, Klein), showing part of the coiled tubule of a sweat- 

 gland. 

 (A). In transverse, 

 (B). In longitudinal section. 



(A), a. Degenerated epithelium, b. The muscular coat divided 

 transversely and somewhat obliquely, c. The transversely cut, staff- 

 shaped nuclei. d. "Membrana propria." e. Connective tissue 

 (cedematous), 



(B). a. Epithelium, b. Longitudinally cut muscular coat. c. The 

 staff-shaped nuclei, d. Membrana propria (Hartuack, Eyepiece III ; 

 Obj. 8). 



Fig. 2. — From a transverse section through the skin of the ear-lobe of pig, 



showing part of the coiled tube of a sweat-gland in transverse 



section. 



a. Epithelium, b. Muscular coat cut transversely, c. Nucleated 



membrane forming the boundary of fibrous tissue around gland-tube. 



d. Connective tissue (Hartnack, Eyepiece III ; Obj. 7). 



Fig. 3.— From a transverse section through the skin of external auditory 



meatus (human), showing part of the coiled tubule of a ceru- 



minous gland in transverse section. 



a. Epithelium with granular matter, b. Transversely cut muscular 



coat with nuclei, c. " Membrana propria." d. Connective tissue 



(Hartnack, Eyepiece III; Obj. 8). 



