PLATE IL CONJUNCTIVAL SECEETIONS. 

 GRAM'S STAIN. 



FIG. I. GONOCOCCI (from a blennorrhoea neonatorum). Gram - negative (red) 

 kidney-shaped Diplococci, tending to lie in the cells. 



FIG. II. PNEUMOCOCCAL CONJUNCTIVITIS (from an acute catarrh). Gram-positive 

 (blue) Diplococci, the most of which are elongated, some being lancet- 

 shaped, and a few rounded. The capsules are not readily seen in this stain. 



FIG. III. OTHER GRAM -NEGATIVE (red) DIPLOCOCCI (Pseudo - gonococci) (from 

 slight cases of chronic conjunctivitis). Ill.a, III.c, Ill.d, MICROCOCCUS 

 CATARRHALIS (III.c, pure culture) ; III.6, GRAM NEGATIVE SARCIN^:. 

 The Diplococci are mostly larger, but some are similar to Gonococci. 



FIG. IV. STREPTOCOCCAL CONJUNCTIVITIS (from a case of pseudo-membranous 

 conjunctivitis). Gram-positive (blue) round cocci, in some cases showing 

 chains, but also in the double form. 



FIGS. V. AND VI. STAPHYLOCOCCI. Gram-positive (blue) cocci. 



V.a. In pus from a hordeolum. Clusters. 



V.6. Large Diplococci and tetrads, resembling Sarcina ; also xerose bacilli 

 from a slight chronic conjunctivitis. 



Vl.a. Pus from the vitreous in a case of suppuration after cataract operation. 

 Irregular clusters of StapJiylococci. The cocci vary in size. 



VI. 6. Masses of Staphylococci in the secretion of a post-operative con- 

 junctivitis. Double forms predominant, many showing coffee-bean 

 shape and being intracellular (Gram -positive Pseudo-gonococci). 



