TUBERCULOSIS. 
347 
M. Lydtin has displayed great efforts to inform the Brus¬ 
sels Congress regarding the frequency of bovine tuberculosis. 
The inquiry to which he has devoted himself is very interest¬ 
ing. It is especially necessary to remember the figures which 
he has drawn up regarding the Grand Duchy of Baden, and 
those borrowed from Goring in Bavaria, for these refer to the 
whole of the animals in these countries. 
Since phthisis prevails more particularly among animals 
aged from three to six years, it will be more frequent in the 
abattoirs than in the cattle sheds of the country. 
In Bavaria, while the proportion of tuberculous subjects 
was raised to 12.5 per 1000 at the abattoir of Munich, it did 
not exceed 1.6 per cent over the whole territory. 
In the Grand Duchy of Baden the proportion was 8 per 
1000 among the animals slaughtered for consumption, and 2.2 
per 1000 for the general bovine population of the whole 
country. M. Lydtin wishes to take into account th e cases 
of tuberculosis that pass unperceived, and of those that are 
concealed, and he believes that 4.5 per 1000 may be taken as 
the figure which expresses the frequency of tuberculosis in the 
Grand Duchy. 
The statistics drawn up in Bavaria, again, demonstrated 
that phthisis was very unequally distributed between different 
regions or districts. 
We know that for some time a similar inquiry has been 
pursued in several European countries. It is therefore prob¬ 
able that the International Congress will witness some valu¬ 
able information on this point. 
As a matter of fact, in France the elements of a statistic 
are borrowed from the register of the abbattoirs inspected by 
veterinary surgeons. The following are the figures that have 
come to our knowledge :— 
At the abattoirs of Bordeaux, according to M. Baillet, the 
proportion of tuberculous cattle (of all degrees) is 2 per 1000. 
At the slaughter houses of Rouen, according to M. Veys- 
siere, the proportion of tuberculous bovines has been, from 
July, 1884, to 1888, 1.43 per 1000; 15 cases annually in 10,500 
animals. During the year 1888 there were discovered 23 cases 
of tuberculosis among 12,174 oxen, cows and bulls. 
