102 RABID, QLANDERED, AND TYPHOID DISEASES. 
— in which way they might be brought morecompletely into 
contact with animals of the bovine, ovine, and porcine classes, 
and the diseases to which they are subject. Thus might be 
filled up one of the gaps existing in the instruction of the 
school : one wdiich we believe it our duty here to point out.” 
RABID, GLANDERED, AND TYPHOID (charbonneuses) 
DISEASES. 
Among the ordinary severe diseases of animals, which 
sometimes occasion serious mischief to agriculture, from 
their transmissibility to the human species, these are the most 
fearful, and withal the most important for study, in regard 
to their manner of transmission. Nevertheless, but very 
little progress has been made in respect to a question at once 
so serious and so complex. Science is still far from being au 
fait on this point ; so that the administration, wfith reason, 
hesitates and trembles when it has to take measures against 
these firebrands. 
Struck with these doubts and incertitudes, M. M. Directors 
of the School, undertook and incessantly pursued for upwards 
of twenty years experiments, both varied and numerous, 
which have already cast considerable light upon this subject. 
We have already, in preceding reports, communicated what 
M. Renault has accomplished. This year he has added 
what follows. 
Guided by actual facts, elicited by science, on the pro- 
perties of virulent matters, the police regulations now pre- 
scribe, under very heavy penalties, to destroy and bury at 
a certain depth, distant from any dwelling house, the offal, 
skin, and flesh of animals that have died of contagious 
diseases. But, from numerous trials made in the course of 
1850, it has resulted that in the state even of desiccation in 
which such matters are used in the arts, the utilisable debris 
possess no danger, either for other animals or for man. 
Indeed, in none of the many experiments in w’hich M. Renault 
has inoculated with the dessicated matter, even of that most 
virulent and active, he has not been able even to produce the 
slightest local effect on animals whom he has inoculated. 
He has, on several occasions, placed in small houses, 
containing dried skins taken from such dead sheep that had 
the rot fifteen or twenty days before, healthy living sheep, 
