132 
EXTRACTS FROM EXCHANGES 
' of the streptococci, how can we expect better results from simi¬ 
lar methods in veterinary medicine ? Our own experiments 
suggest further, that the procuring of a serum of recognizable 
value from any virulent streptococcus is not in all cases, even 
experimentally, easily accomplished. It seems just, both to the 
bacteriologist and to the practitioner, that the investigations 
should be continued until we are in possession of more definite 
and trustworthy results concerning the action of the serums 
prepared from the different streptococci on the diseases produced 
by the same species, before veterinarians become too eager to 
risk their reputation or money of their clients in a general and 
unscientific application of these expensive remedies. The accu¬ 
mulated evidence at the present time points (i) to the probable 
high efficiency of certain antistreptococcic serums against the 
diseases produced by the same streptococcus, and (2) that these 
serums are likely to have little or no value in diseases caused 
by other streptococci or other genera of bacteria.”—( L . A . M.) 
EXTRACTS FROM EXCHANGES. 
FRENCH REVIEW. 
Complete CEsophageal Obstruction by an CEgag- 
ropilE [By M. Misier ].—This is a rare case. A cow presented 
all the symptoms of oesophageal obstruction—tympanites, ptyal- 
ism, inability to eat or drink. After puncture of the rumen and 
failing to discover anything in the oesophageal groove, the 
author introduced a probang and felt a foreign body in the 
thoracic portion of the oesophagus, about 10 centimetres from 
the cardiac end. Unable to dislodge it unless great force be 
used, the owner, after giving his consent to resort to it, refused 
to have it done, and the cow died on the fourth day. At the 
post-mortem an oegagropile measuring 7 centimetres in diameter 
was found imbedded in the oesophagus, which it had considerably 
dilated.—( Rec . de Med, Vet.) 
Congenital Inguinal Hernia in a Two-year-old 
Colt—Bayer’s Dressing—Recovery [By E. Marx ].— 
This subject has a hernia as big as a child’s head, which has 
resisted all kinds of treatment—bandages, blisters, clamps, etc. 
As the animal was becoming unfit for work, the operation was 
decided upon as a last resort. The classic operation was per¬ 
formed, and after suture of the ring, abdominal wall and the 
