QUARTERLY CHRONICLE OF MICROSCOPICAL SCIENCE. 197 
servers, in the connective-tissue stroma of the villus, whence 
it can be traced into the lymph-vessel. ‘This indicates that 
the fat is absorbed by the processes of the connective-tissue 
which exist between the epithelial cells, and thence finds its 
way by the connective-tissue stroma to the lymph-vessel. 
4. The reticulum of nucleated cells of the mucosa forms 
a special sheath to the vessels and unstriped muscular 
tissue. 
In the villi the muscular bundles, having approached the 
apex, terminate, the connective-tissue which forms their 
sheath being continuous with the corpuscles forming the 
basement membrane. 
In the mucosa of the colon of the rabbit the slender 
muscle-bands divide into single muscle-fibres, on which the 
common sheath is continued. This sheath becomes often 
connected with peculiar large, oval, nucleated cells lying 
close under the epithelium. 
Observations were also made on the state of the lingual 
glands in rest and secretion. 
XI. Skin, Hair, &c.—1. Conglomerate Glands of the Skin 
in Man.—Weynold gives the results of his examinations 
of the various conglomerate glands in man (‘Virchow’s 
Archiv,’ part 1, 1874). After distinguishing the efferent 
duct from the coil itself, in common with other authors, 
he quotes Kolliker, to the effect that the commence- 
ment of the former is invariably narrower than the 
lumen in the coil itself, and continues so to its 
entrance into the Malpighian layer, where it dilates to 
about double the size, and, retaining this breadth, it traverses 
the epidermis. In the corium the sweat-glands always have 
a distinct cavity, and an external investment of connective 
tissue, with elongated nuclei, without smooth muscular 
fibres, and an epithelium of at least two layers of polygonal 
nucleated cells without pigment-granules, &c. In order to 
examine the condition of the excretory duct, Heynold used 
pieces of skin hardened in either two per cent. of bichro- 
mate of ammonia or in Miiller’s solution and afterwards in 
alcohol, and partly in one half per cent. of osmic acid. The 
latter liquid was allowed to act for twenty-four to 
thirty-six hours, after which the pieces were placed in 
absolute alcohol. The following are the result of his in- 
vestigations : 
1. All secreting canals of the conglomerate glands are 
more or less provided with muscles. 
2. All secreting canals possess (towards the lumen) a 
sharply demarcated cylinder-epithelium without cuticle. 
