i 4 4 THOMPSON YATES LABORATORIES REPORT 
Acute Dacryocystitis 
Case 
1 Girl, aged 13. Streptococcus pyogenes longus. 
2 Girl, aged 10. Streptococcus pyogenes. B. xerosis and pseudo- 
diphtheria bacillus. Staphylococcus citreus. White 
cladothrix. 
3 Girl Streptococcus pyogenes. 
The streptococcus from case 1 was inoculated in a mouse, which died in five 
days from general infection. 
These observations confirm the results of Morax, Parinaud 55 , and Eyre 7 . 
Morax found Koch-Weeks bacillus in a large number of his cases of 
mucocele. 
Morax and Parinaud isolated streptococcus pyogenes from the pus of acute 
inflammation of the lachrymal sac. Eyre investigated twenty-six sac cases. In ten 
cases of acute purulent dacryocystitis streptococcus was constant, and in a large pro- 
portion of the chronic cases streptococcus occurred. In six cases of mucocele Weeks 
bacillus was isolated three times. 
Unclassified Cases 
In all about two hundred individuals with inflamed eyes have been examined ; 
in many, discharge has been collected from both eyes. A large number of the cases 
has not been classified ; they include, mainly, simple inflammatory states that have 
been for some time under treatment, chronic inflammatory states with no definite 
history, traumatic cases, etc. 
A few cases of blepharitis and ulcer of the cornea have been examined, but 
the number has not been sufficient for any definite conclusions to be arrived at. In 
blepharitis staphylococcus aureus frequently occurred, and in some cases a short 
bacillus was obtained, which closely resembled the diplo-bacillus of Morax. 
In one case of ulcer, with bulging of the cornea, a little of the discharge re- 
moved from the surface of the cornea was found to contain remarkably few organisms 
of any kind : cultures of B. lacunatus (Eyre) ; staphylococcus epidermidis albus ; 
B. xerosis and a pseudo-diphtheritic bacillus were obtained. 
In a case of membranous conjunctivitis, closely resembling the conjunctivitis 
produced by B. diphtheriae, only B. xerosis and a pseudo-diphtheritic bacillus were 
isolated. Inoculation of a large quantity of these bacilli into guinea-pigs produced 
no reaction. 
