VETERINARY SCHOOL AT ALFOIIT. 
385 
and particularly on the anatomical composition of the villosities 
and the functions of these important appendages of the digestive 
mucous substances ; the transformation of the alimentary animal 
and vegetable substances into chyme ; the formation of chyle, the 
process of its absorption, and the circulation of this fluid in the 
humours ; the organic composition of the blood and of the lymph ; 
the mode in which the globular particles of these two fluids are 
formed ; and, finally, the modifications introduced into the physi- 
ological stale of the blood and lymph by the admixture of the 
materials furnished by the digestion of the immediate principles 
of the animal and vegetable substances taken as fodder. 
These researches have conduced to several discoveries, among 
which we will here point out — 
1st. The prolongations, shortenings, and sloping position of the 
intestinal villosities. 
2d. The existence of an apparatus for the absorption, division, 
and purification of the crude chyle, proceeding from digestion; and 
an homogeneous chyle, consisting of exceedingly small particles, 
floating in a transparent fluid, called chylogene, which covers 
each villosity, and is formed by a particular deposition of their 
epithelium. 
3d. The circulation of the particles of the chyle in the blood, 
which flows through the arteries, veins, and capillaries. 
4th. Finally, the existence of the rough globules circulating 
with the lymph. 
The results of these researches have been partly communicated 
to the Academy of Science : they will be published continuously 
in the Rtcueil de Medtcine Veterinaire. 
During the last few years several persons have noticed the ex- 
istence of certain worms in the blood of frogs, but until the present 
time no one has observed those entozose which circulate through 
the veins of warm-blooded animals, and those which approach so 
much nearer to the human being. 
Within the last few months the same persons have discovered, 
in four dogs of different breeds, a worm of the filaria species, con- 
stantly living in the blood of these animals : these worms are 
from three to five thousand millimetres in diameter, and twenty-five 
hundred millimetres in length. They are transparent and colour- 
less, their anterior extremity dull, and the posterior or caudal 
extremity terminating with a very small film. At the anterior part 
we observe a furrow about five thousand millimetres long, which 
may be considered as a buccal fissure. 
According to these characters, this species of hematozoaire must 
belong to the filaria kind. 
The motions of these creatures are very quick, and they will 
