94 
At the time of starting these experiments nothing bei 
than the aBove was known of the life-histories of the : S 
species of Habronema found commonly in the stomach of the 
gon : 
artificial conditions both Zabronema muscae and H. sce 
toma develop through their larval stages in .M wa se 
At that time it was not possible to take the experimen y 
further. in 
Towards the end of 1917 the work was taken Kn 
when it was found impossible to pass H. megastoma t "ges : 
Stomozys calcitrans. The work was proceeding when 1 
. calcitrans. Nothing further of Hill's work has bee 
n 
and up to the time of writing (March, 1919) ses 
learned, 
work has not been published. ; h 
he experiments were continued during 1918 and the 
early part of 1919. 
TE stomachs 
od.—For the purpose of obtaining embryos, : 
taken from horses killed at the Zoological Gardens, Adelaide, 
were exa n all considerably over one 
ble of 
‘same animal 
used to supply the embryos. d 
In the later iments sterilized dung was used, an 
