836 
EXTRACTS FROM EXCHANGES. 
operations, the veterinarian is justified in wearing them, as 
they will serve to keep the hands pure for other operations in 
which asepsis is an indispensable feature. The chief use of 
gloves, however, is in casting and securing the patient and in 
preparing the operating field. If used for this purpose the sub¬ 
sequent steps can then be performed with normally clean 
hands which otherwise would have been dirtied beyond restor¬ 
ation. (3) Avoid capital operations after having performed 
septic ones. —Operations of the internal cavities, castrations, etc., 
must not be thought of immediately after having removed a 
putrid foetus or operated upon a fistula or abscess with the bare 
hands. Such operations, unless performed with gloves, render 
the hands unsafe for operations during several days following. 
(4) Disinfection of the hands. —The hands of a surgeon must 
be free from long nails and finger rings and the arms should be 
bare to prevent the coat sleeve or cuff from interfering with the 
work and coming in contact with the wound. In cold weather 
rubber sleeves are useful and in fact indispensable. The first 
step in disinfecting the already clean hands is to wash them well 
in soap and tepid water and then immerse them freely in a solu¬ 
tion of mercuric chlorid 1-500, repeating the latter frequently 
during the operation. Suitable solutions of lysol or carbolic 
acid also merit consideration in this connection.—( L. A. M.) 
EXTRACTS FROM EXCHANGES. 
GERMAN REVIEW. 
By Adolph Eichhorn, D.V.S., Bureau of Animal Industry, Milwaukee, Wis. 
The Entrance of the Tubercle Bacillus and its 
Localization in Man \Prof. P. Grawitz]. —The new theory 
of R. Koch, regarding the non-transmissibility of bovine tuber¬ 
culosis to the human race, excited surprise all over the civil¬ 
ized world, when it is considered the extensive hygienic 
measures, humane and sanitary regulations that are enforced. 
The few experiments performed on cattle and hogs will not 
suffice to overthrow all these existing conditions, and to shake 
the foundation of the adopted precautions. B. proved that chem¬ 
icals free from bacteria, as nitrate of silver, turpentine, etc., 
have an entirely different action on the different kinds of ani- 
