PARASITIC LUNG DISEASE OF LAMBS. 
721 
sistent action on the part of the local authorities to stamp it 
out. As far as we know, the total number of animals at 
present affected does not exceed three hundred; this time 
last year the number of diseased animals was reported to be 
a little over two hundred. The total number of counties 
returned as infected is forty-four, giving an average of some 
half dozen cases to each county. 
FOOT-AND-MOUTH DISEASE. 
This affection continues to advance with extraordinary 
rapidity. In the return of cases for the week ending Sep- 
tember 9th, the number of attacks reached nearly thirty-nine 
thousand, while in the corresponding week of last year they 
were less than seventeen thousand. 
The number of infected counties has increased from fifty- 
nine, as stated in our last report, to seventy-six, and the 
centres of infection number between nine and ten thousand. 
Under these circumstances, and with the present system of 
carrying out the provisions of the Contagious Diseases (Ani- 
mals) Act, it will be remarkable if the disease ceases while 
any susceptible subjects remain to be attacked. 
PARASITIC LUNG DISEASE OF LAMBS. 
For a few weeks past a great fatality has prevailed among 
the lambs in many parts of the country, more especially in 
the counties of Worcester, Gloucester, and Shropshire. 
In some instances the deaths have reached full 50 per cent., 
and in very few has it been less than 20 to 30. Throughout 
its progress the disease has been accompanied with great 
wasting, the animals ultimately becoming so emaciated as to 
be little better than living skeletons ; a “ hacking cough ” 
has also been a prominent symptom from the beginning of 
the disease, while dysenteric purging has immediately pre- 
ceded death. These symptoms, and others unnecessary to 
particularise in a short notice of this kind, have had their 
origin in the existence of worms ( Strongylus bronchialis ) within 
the windpipe, bronchial tubes, and air-passages of the lungs. 
Structural disease of the lungs has resulted from the irritation 
induced by the presence of the parasites, and the deposit of 
their ova within the minute air-tubes and cells, and especially 
from the young worms, when hatched, locating themselves in 
the so-called parenchymatous tissue of the lungs. All young 
animals are at times liable to attack of the Strongylus bronchi - 
