230 
EXTRACTS. 
land, 43 ; in London alone, 8.5. If, as in the estimates used for 
judging the utility of that method of treatment, these numbers 
are taken as representing only 5 per cent of the persons bitten, 
the preventive treatment will be required for 860 persons in all 
England ; for 170 in London alone. For it will not be possible 
to say which among the whole number bitten are not in danger 
of hydrophobia, and the methods of prevention by cautery, ex¬ 
cision, or other treatment, cannot be depended upon.” 
The report is furnished with an appendix containing (a) an 
abstract report of Mr. Horsley’s experiments; (b) a report on 
persons in France examined by members of the committee, with 
a list of English persons treated at the Pasteur Institute from 
January, 1886, to January, 1887; and (c) on M. Pasteur’s 
methods of preventive inoculation. The report is signed by 
James Paget (chairman), T. Lauder Brunton, George Fleming, 
Joseph Lister, Richard Quain, ILenry E. Roseoe, J. Burdon 
Sanderson, and Victor Horsley (secretary). 
AN EXPERIMENTAL RESEARCH UPON RABIES. 
At a meeting of the Philadelphia Academy of Surgery, held 
February 7, 1887, Dr. Harold 0. Ernst, of Boston, read a paper 
on the above subject .—(Medical Times .) 
His experiments were performed with three objects in view : 
first, to determine whether or not there was such a tiling as a virus 
of rabies; secondly, if there is such a virus, does drying at an 
even temperature modify its strength ? thirdly, does the inocula¬ 
tion of such modified virus afford immunity against the inocula¬ 
tion of a stronger virus ? 
The different series of experiments relating to these various 
points were then given in detail. The animals used in most of 
the experiments were rabbits, although guinea-pigs and dogs were 
also employed. 
The following conclusions were reached: 
1. That there exists in the cords and brains of animals inocu¬ 
lated in Pasteur’s laboratory a specific virus capable of the pro¬ 
duction of similar symptoms through a long series of animals. 
