W. T. PROUT
occasions, but was unable to detecg any filarial embryos. I also punctured the inguinal glands with a hypodermic syringe, but here again examination of the fluid gave a négative resuit. I may State, however, tbat at that time, owing to pressure of other work, I was unable to dévote as much time to the examination of the blood as I should like to bave done, and it is possible that a raore fréquent examination, moreespeciallyatnight, would haverevealed the présence of embryos. So far then, apart from the présence of the Filaria which I am about to describe, there do not appear to bave been any distinctive features in the case.
TuMouR. — It was about one inch in length by three-quarters in breadth. On making an incision, a greenish, semi-purulent locking fluid about the consistence of cream escaped from the cyst. This, on microscopic examination, was found to contain numerous filarial embryos. The capsule of the cyst consisted of dense iibrous tissue, lined internally by a layer of soft caseous looking material, which could be easily scraped ofl and was composed of granular matter, fat cells, flat nucleated epithelial cells. It contained free embryos. The interior of the cyst was fllled with the adult Filariae, lying in loops, twisted up in the most confusing fashion; entering the cyst walls, runningalong shallow channels, and then reentering the cyst. Owing to this and to the softness and brittleness of the Worm, it was a matter of the greatest difBculty dissecting il out, and I found it impossible to do so without breaking it. Eventually, however, I succeeded in isolating a complète unbroken adult maie, and the head, tail, and intermediate fragments of a female. Thèse two formed the whole contents of the cyst.
Mâle worm. — He is of much smaller and narrower dimensions than the female. Length of one spécimen 3<'i°025, of the other d'BiQOSS. It is white in colour, and somewhat flattened in sbape, which is possibly artificial, and due to immersion in the preserative. The chitinous cuticle, which is about 18 pi in thickness, is very distinctly striated throughout, the striations becoming finer as they approach the head and tail. The greatest diameter of the body is 144 [jl, which is maintained throughout the greater part of its course. There is a gentle and uniform taper to head and tail. Diameter at head 44 ijl.
The head (fig. 1) is rounded and not club-shaped. The moût h is
OBSERVATIONS ON FILARIA VOLVL'LtIS
simple. Thealimeotary canal is simple, straightaod upens lernii-
nally. Other canal» can be seen îa tbe body cavity, probably water
vascular and reproductive Systems.
The tail {i\g. 2) js very markedly incurvaled. Al a distance of 49 ^
from the extremily, tbe anal orifice can be seen, Posterior to this, tlie tail is narrow, 28 {x; immediately anterior, it measures 44 fx, wbile jusl wliere the incurvature ,) ends tbe diameter bas increased to 64 }x. Tbe extrême end of the tail, on tbe concave side. is llattened, and at this point, four papillae arrao-
Fl^. I.— Head uf tlie maie. — A, alter a peucll drawlDg; B, aller a pboto^raph.
t'iK. i. ~ Tail of tbe maie
ged one bebind tbe olber can be seen. Tbese appear to me to be in pairs, as on focussing carefully past tbem, Ihe dim outlines of olhers can be seen.
The anal orifice itself, is seeo to hâve one post-, une pre-anal, and Iwo latéral papillas. Probably a similar number is to be found on tbe other side giving a total of eigbt anal papillae.
Prom the orifice a spicule projects for a distance of 18 ti. The extremity of this is slightly clubbed, from whicb it expaads gra-
