TO to which larvae of H. microstoma had been added, 
138 
Habronema microstoma, which would probably be inoculated 
y Stomozys calcitrans. : / 
granulomatous condition found commonly in the horse 
and ass in various parts of the world, and known as “summer 
sores," or “granular dermatitis," has the same etiology as the 
granulomata observed in Southern Australia. s 
Examinations have been made of a granuloma which 
affects the region of the pastern of the horse in the Solomon 
Islands, and it has been found to be a habronemic granuloma. 
Under the names ''Leeches" in North America and 
"Bursattee'" in India are described granulomata affecting 
common to habronemic granulomata. o larvae have been 
found in the tumours, and the etiology still remains somewhat 
obscure. They possess, nevertheless, such a striking resem- 
blance to habronemic granulomata that it seems probable that 
they possess a similar etiology. 
G. PROPHYLAXIS AND TREATMENT. eee 
Prophylaxis should be in the direction of (1) eve 
Excision of the lesion will usually be found the best method 
of treatment. Should the lesion be ulcerated and of sue 
à size as to be inoperable it is advisable to keep the surface 
covered by some application which will protect it again: s 
and possible super-infection. The lesion may reduce 12 er" 
under this treatment and become amenable to surgir? 
treatment. 
ADDENDUM. ses 
Since thi T: unity has ar! 
ince this paper was submitted an opportumty med BE 
So far as they deal with the life-histories of H abrant 
muscae, H. microstoma, and H. megastoma the m 
writer’s pags in the main, agree with and cone” jc 
il à : 
Musca domestica * ‘occasionally (possibly only accidentally) [^ 
| as an interm lary'' host of H. microstoma (p. 44) 
records of experiments 7 to 11, 13 and 14, em 
Musca dome stica I allowed to develop in steri p that 
