136 



SEBACEOUS GLANDS. 



[sect. 73. 



hairs ; but they present many individual differences. The glands 

 of the larger hair-follicles are generally simple racemose glands. 

 Fig. f)0 . having an average diameter of -jV" 



to -^'", and are disposed to the 

 number of 2 to 5 around the fol- 

 licles. The smallest, of o-i'" to 

 0-16'" in diameter, are found in 

 pairs, connected with the hairs of 

 the scalp ; larger ones, of o* 1 6'" to 

 o*24'", in the hairs of the beard and 

 the longer hairs of the chest and 

 axilla, in which they are generally 

 placed in groups around the follicles ; 

 the largest on the mons veneris, the 

 labia majora, and the scrotum. In 

 all these places, at least in the last- 

 mentioned, they are situate at the 

 inferior boundary of the cutis, and 

 being connected in clusters of from 

 4 to 8, form beautiful rosettes of 5, 

 I, to 1" broad. The smaller se- 

 baceous glands, connected with the 

 follicles of small stout hairs, as on 

 the eyebrows^ eyelids, and entrance 

 of the nostrils, are, as I find, gene- 

 rally disposed in pairs of 0*06"' to 

 0-24'" in diameter. Larger glands, 

 or collections of glands of J'" to 1'" in diameter, are generally 

 found connected with the downy hairs — the most beautiful upon 

 the nose, the ear {concha, fossa scaphoidea, etc.), penis (anterior 

 half), and areola of the nipple ; but particularly upon the part first 

 mentioned, where the glands often assume a colossal size and very 

 singular forms (fig. 60). On the caruncula lacrymalis, the glands 



Very large gland from the nose, with a 

 small hair-follicle opening into it ; magnified 

 50 times. The letters a. to/, as in fig. 59. 



are generally of ■£■"' to 



y in diameter, 



on the lips, forehead, 



chest, and abdomen, they are somewhat smaller, yet generally 

 larger than those of the hairy scalp, the eyelids, cheeks, neck, 

 back, and extremities. Of sebaceous glands unconnected with 

 hair-follicles, only a part of those on the labia minora are of con- 

 siderable size (o"i4'" to 0*5'"), rosette-shaped, and with apertures 

 of 0'033'" in diameter; the others are generally simply tubular, 

 and at most o - i2"' to cri6'" long, and o*o4"' to o , o6" / broad. The 

 terminal saccules of the sebaceous glands are either round, pyriform, 



