THE LACHRYMAL GLAND 



155 



The ducts range from 1.5 cm. to 2 cm. in length. They are 

 more or less tortuous in their course as it is impossible to obtain 

 a duct in its entirety even in thick sections. There are seen on 

 the conjunctiva surrounding these terminals aggregations of 

 lymph nodes. From four to six ducts leave the Pars superior 

 while from one to two leave the Pars inferior (fig. 3). 



M rectus sup 



M levator palp. sup. 



Pan superior 

 gland lack 



palp. sup. 



Pars inferior 

 gland lach. 



DucTuli excretorii 



Fig. 3 Pars superior; Pars inferior; Ductuli excretorii. Specimen prepared 

 by Tech. I. 



III. SUPPORTING TISSUE 



For the study of the capsule and connective tissue framework 

 of the gland the methods and stains used were : Flint and Spalte- 

 holz, Mall's method and a modification of his method for the 

 demonstration of reticulum, Mallory's, Van Gieson's, Weigert's, 

 and Herxheimer's. (See Technique.) 



Capsule 



The capsule is fused with the general areolar and adipose 

 tissue of the orbit. Strands of tough connective tissue fibres 

 derived from the periorbital fascia are also intimately fused with 

 the capsule. It is bound down to the gland by numerous inter- 

 lobular septa which take origin from the capsule and ramify 

 throughout the gland thus separating it into numerous lobules. 

 It varies in thickness. In general that portion covering the 



