Alt — Glandular Structures Appertaining to the Human Eye. 201 



sion only when my investigations on this subject were, so to 

 speak, closed. 



For macroscopic inspection Terson clears the whole eye- 

 lids up, by means of tartaric or acetic acid. He says: " In 

 the outer third of the specimen the palpebral lacrymal gland 

 with its own excretory ducts and those of the orbital lacrymal 

 gland is plainly seen." Further on : "It is not difficult to recog- 

 nize a long line of very much smaller glands, forming, as 

 Mr. Panashas so happily expressed it, a sort of ' milky way ' in 

 the upper conjunctival cul-de-sac. Of these glands there is a 

 continuous row, and they grow gradually larger towards the 

 inner angle." 



Further on, he says: " In the lower cul-de-sac I find a few 

 glands very similar to those in the upper one, but they do not 

 reach the inner angle and are situated in that half of the 

 lower eyelid which lies close to the palpebral lacrymal 

 gland." 



In these particulars Terson' s description varies but little 

 from my own. 



His description of the acino-tubular glands in the tarsal 

 tissue, also, agrees very well with mine. His experience has, 

 also, been that these glands are found most frequently in the 

 temporal half of the tarsal tissue, but often, too, in the nasal 

 or other parts. Contrary to my experience, he finds their 

 excretory ducts to be very long and very tortuous. He also 

 has found, that their duct may pass down, in between the 

 Meibomian glands. He further states that the epithelium of 

 these glands as well as that of their excretory ducts ap- 

 pears identical with that of the acinous glands of the fornix, 

 and that the external orifices of the excretory ducts of the 

 acino-tubular glands lie in the conjunctiva of the upper cul- 

 de-sac or at other points of the tarsus and often even very 

 near the lidmargin. 



From this it would appear, that he never found such acino- 

 tubular glands in the lower eyelid. 



With regard to the glands found in the walls of the lacry- 

 mal sac, a very exhaustive paper by K. Joerss has appeared 

 as No. 35 of Deutschmann's Beitraege zur Augenheilkunde, 

 Leipzig, October 29th, 1898. (Beitraege zur normalen and 



