82 
PROGRESS OF VETERINARY SCIENCE AND ART. 
the bladder worms will be taken up, and carried to parts 
probably through the blood. 
The success attending the trephine in cases of bydatids in 
the brain of the ox, is very great and encouraging ; and not 
only have 1 read interesting and convincing records on this 
subject, but, in conversation with skilful and experienced 
veterinarians, I have learned that trephining is an operation 
often to be relied upon. 
Larvae in the Brain of a Foal. — Professor Rriickmuller 
gives a very precise account of this very strange case. It 
occurred in a year-old foal that had been quite well until 
shortly before the professor saw him, when he was affected 
with dreariness, turning constantly to the left, and other 
symptoms; he held his head awry, the right side being 
uppermost ; the left eye was half closed, the globe of the 
eye was drawn to one side, the pupil dilated and immove- 
able; the neck was bent to the left; in uplifting the deeply 
sunken head the animal plunged backwards ; in progression 
he tumbled and staggered, and fell mostly on the left side ; 
he could not well bear to lay on the right side ; there appeared 
no disturbanceof thepulse, respiration, digestion, or even of the 
sensory function. The animal was killed after having been 
observed for five days. On opening the skull there was 
found accumulation of blood ; and just on the left cerebral 
peduncle, in front of the pons varolii, was the larva of an in- 
sect, twelve lines in length and three in breadth, and so deeply 
imbedded in the substance of the brain, that the rings of the 
larva are well marked on it; a similar but empty cavity is 
met with deeply situated in the pons varolii. It encloses 
broken-up brain substance and fluid blood. Two other cavi- 
ties, similar to the foregoing ones, one only of which contains 
the larva, are observed above and on one side in the brain 
substance ; there were no alterations in the blood-vessels and 
membranes of the brain. In the stomach there were bots 
besides other worms, but in the left frontal sinus there was a 
thickened, darkish spot on the mucous membrane, perforated 
by small holes. It is probable that both bots were originally 
attached here, then they attained the throat, and from there 
they passed into the vessels of the neck, into the cranial 
cavity, and were carried to the brain. — Vierteljahr fur JFissen- 
schaftliche Veterinarkunde von Dr. Muller and Hall, vol. vi, 
p. 48, Vienna. 
21, Dublin Street, Edinburgh; Jan., 1857. 
[To be continued .) 
