moved from the same eye on three successive days. These sohd masses can 

 be easily removed ; but thty may sometimes adhere to a croup )as membrane 

 on the mucosa. 



In the further course of the Conjunctivitis, small croupous membranes ap- 

 pear on the Conjunctiva, and on the swollen lids, or the mucous membranes. 

 These usually adhere closely : and, on their removal, the mucous membrane 

 begins to bleed. 



Fi^-. 3.— Sei-tioii through the deeiier epithelial layer under a (irmly 

 attached false membrane from hen No. 9, maunitication 700. 



a. Swollen epithelial iiviceli with 1 or 2 well-stained nucleoli. 



b. Nucleus of normal size jjranular staining. c. Leucocytes 

 and fibrinous exudate. (/. (Jramilar detritus. ''. Two sjicirt 

 bacteria. 



The Cornea may also become a direct seat of the disease, m which case 

 small croupous membranes form on it. These may remain on the Cornea, 

 or spread over the Conjunctiva of the bulbus oculi. Often the membrane 

 grows through the whole Cornea. If it falls ofl, the interior eye cavity is 

 either directly opened, or the remaining layer of the diseased Cornea is too 

 thin to resist any following perforation. After the opening of the eye-cavity, 

 a prolapse of the lens may occur ; and following this, a purulent ophthalmia 

 develops. After the destruction of one eye, the other usually becomes sym- 

 pathetically diseased. If both eyes have been originally the seat of the dis- 

 ease, panophthalmia may form on both sides. 



The swellings in the eye-lids may remain the same for a long time ; but, 

 frequently, the swelling spreads under the inner corner of the eye towards the 

 nostrils. The lids, as well as this tumour, have a high temperature ; and are 

 at first soft and oedematous. Later, indurations form in the centre, which 

 become larger and larger, and at last lie directly under the skin. The outside 

 of these indurations is rough or smooth, and the skin on it may be moved. 

 In rare cases, an abscess forms instead of the induration. 



