17,1 De Leon: Encephalitis Lethargica 181 
I presume that clinical diagnosis of isolated cases here, for 
reasons that are evident especially in this country and as 
borne out by an analysis of the diagnoses in this small series, 
will be doubly difficult due to the frequency of tuberculous me- 
ningitis, especially in children. 
REFERENCES 
. Journ, Am. Med. Assoc. 73 (1919). 
Med. Journ. Australia, 1 (1918). 
. Brit. Med. Journ. (May 138, 1919). 
. Journ. Am. Med. Assoc. 22 (1919). 
Med. Rec. 96 (1919). 
oF OM 
