714 
EDWARD W. SHANN. 
defined membvana basale {M.h.). Each cell contains a 
well-defined nucleus {N.). Serial sections show that this 
epithelium occupies an oval area a few millimetres from the 
tip of the lobe, and that it is confined to the outer vertical 
T. Ss. Adipose lobe of adult salmon. 1. In the region of the 
epidermis. 2. Slightly more than 3'5 mm. from the tip. 
3. Slightly more than 1 mm. from the tip. 4. At the tip. 
0., V. Outer, ventral aspects. Ct. Coimective tissue. Ep. Epi- 
dermis. 31. h. Membrana basale. Sc. A. Accessory scale. Scbl. 
Scleroblastic layer. 
wall of the lobe. The invariable preservation of this 
epidermal tissue on a definite area, which is in no way 
specially protected, tends to suggest that the absence of 
epidermis from the remainder of the lobe is quite a normal 
Text-fig. 2. 
V. 
Scbl. 
V 
Sc.A 
V. 
_ Sc.A. 
Sc.A 
M.b. 
Ep O. 
