ANALYSIS OF CONTINENTAL JOURNALS. 633 
to ten. The head is truncated, the mouth rounded off, the 
anterior portion of the body is covered with elongated scales, 
variable in size and of a pale colour, which decrease in size 
towards the posterior part, where they gradually disappear. 
The posterior part of the male is somewhat more curved, and 
it is winged, the penis is double, situated under the caudal 
extremity not far from the anus, the testicles are elongated. The 
uterus of the female is long and filled with a great number of 
eggs, the vulva is very salient, placed at the extremity of the 
body, the caudal appendage is efilated and not winged as in 
the male. The eggs are oval-shaped, the shell is very thick, 
those contained in the anterior part of the uterus contain a 
finely granulated substance, those of the posterior part con- 
tain an embryo w 7 hich is the more evident in proportion as the 
eggs are nearer to the vulvular orifice; no embryos were 
found out of the eggs in the uterus. 
From six to fourteen couples are found in the same animal. 
Mr. Muller has found this spiroptera in five or six oeso- 
phagi of Hungarian and Polish oxen as well as in the 
oesophagus of a horse. — (Ester. Vierj., xi, 1869. 
TRICHINA SPIRALIS. 
Doctor Lindiioir, of Ratzebourg, has found trichinse in a 
scirrhous tumour of a woman. — Archives of Virchow, 44th vol. 
A FCETUS IN ANOTHER ECETUS. 
Professor Gurlt describes the presence of a foetus in 
the abdominal cavity of a calf; it was constituted as follows: — 
The left hind leg incompletely developed, and also by a 
membranous organ representing the uterus, by the skin, and 
some blood-vessels. According to the author it belongs to 
the Edocymian family. — Magazin f. Thierheilk , p. 347, 1869. 
AUSCULTATION. 
The bruits in the vascular system are produced by the 
passage of the blood through the vessels wfith a certain force. 
The following experiment demonstrates w T hat takes place 
in the vascular system. If w r e force through a tube some 
liquid holding in suspension some coloured molecules, it will 
pass in a regular stream without bruit as long as the pressure 
is not forced; if the pressure is increased the molecules quit 
the periphery to accumulate in the central part, and a bruit is 
produced at the same time. — Berlin Klin.Wochensch ., 1869. 
PERCUSSION. 
The tympanic sound in solid bodies is produced: 1st. 
When the parts percussed have the form of a plate or branch, 
and one of its dimensions exceeds the other. 
