EXTRACTS FROM EXCHANGES. 
715 
EXTRACTS FROM EXCHANGES. 
GERMAN REVIEW. 
By W. V. Bieskr, l \ V. S., New York City. 
Value of Neurectomy. —;-R. declares neurectomy to be of 
limited value, inasmuch as most patients become unfit for use 
aftei a yeai or so, according to his experience 5 the diseases for 
wliich the operation is indicated makes unhindered progress in 
spite of the cause. In such a case such pathological changes 
occurred at the crown of the hoof that the axis of the foot was 
entirely changed, the horse being only able to walk upon the 
outer edge of the hoof.— Thierarzt. IVoc/i.) 
Fatal Panopthalmitis in the FIorse.— P'onr weeks after 
an injury to the left eye, suppurative panopthalmitis set in, the 
patient thrust his head in a corner of the stall, or leaned it for 
support npoiT the manger ; the animal was quite oblivions of 
his surroundings, becoming only momentarily conscious of be¬ 
ing called ; in such moments he took up a little fodder, only to 
let it fall, and then fell back into his original apathy again 5 
respiration was deep and slow, pulse weak, the head very hot! 
Five weeks after the injury the animal suddenly shook his head', 
staggered and fell down dead. At the autopsy the right eye 
was normal, the optic disc of the left eye infiltrated, and into the 
nerve itself three large haemorrhagic clots. The dura mater was 
markedly injected, the pia mater at the base was congested; the 
brain substance showed softening and glistened from moisture 
on section; the ventricles contained about a thimbleful of 
serum.— (Berl. Thicrcirzt. IVoc/i.) 
Tetanus Antitoxin in Tetanus Nocard in¬ 
sists that however useful tetanus antitoxin may be as a preven¬ 
tive, it is not of the least value against tetanus itself. The fail¬ 
ure of the remedy against the disease itself is due to the fact 
that the symptoms of tetanus appear only a long time after the 
absorption of the poison, at a time when the nerve cells have 
been irreparably damaged. Of what use is the injection of the 
antitoxin then ? Upon Behring’s asserting that he had an anti¬ 
toxin that would cure tetanus already developed, N. decided to 
test the remedy. Calculating beforehand that a dose of 6 mg. 
would be the fatal dose of tetanus antitoxin for a horse, keepiiig 
in mind the fact that the first symptoms of tetanus develop in 
from five to .seven but usually on the sixth day after the inocu- 
