308 THE HOUSE FLY—DISEASE CARRIER 
Construction .—The apparatus under consideration 
consists of the following parts: 
1. A water-tight barrel, to be used as a liquefier. 
2. A covered water-tight barrel, can, or other con¬ 
tainer to receive the effluent. 
3. A connecting pipe about two and one-half inches 
in diameter, about twelve inches long, and provided 
with an open “T” at one end, both openings of the 
“T” being covered by wire screens. 
4. A tight box, preferably zinc lined, which fits 
tightly on the top of the liquefying barrel; it is pro¬ 
vided with an opening on top for the seat, which has 
an automatically closing lid. 
5. An anti-splashing device consisting of a small 
board placed horizontally under the seat and one 
inch below the level of the transverse connecting 
pipe; it is held in place by a rod, which passes 
through eyes or rings fastened to the box, and by 
which the board is raised and lowered. The liquefy¬ 
ing tank is filled with water up to the point where it 
begins to trickle into the effluent tank. 
As an insect repellent a thin film of some form of 
petroleum may be poured on the surface of the liquid 
in each barrel. 
Practical working of the apparatus .—When the 
privy is to be used, the rod is pulled up so that the anti¬ 
splashing board rises to within about one inch below 
the surface of the water. The fecal matter falls into 
the water, but this board prevents splashing, and thus 
meets one of the greatest objections thus far raised to 
the wet system. After defecation the person sinks the 
anti-splashing board by depressing the rod, and the 
