586 
BRONCHITIS IN CALVES. 
but this may partly be accounted for from the head and neck, 
after death, lying lower than the body, and thus some of the 
worms gradually gravitating down ; yet the bronchial tubes 
seemed to be completely plugged up. The posterior and supe¬ 
rior part of the lungs possessed much of their external natural 
colour; but, anteriorly, they were much inflamed. When cut 
into, the substance of the lungs seemed to be thickened and 
indurated anteriorly: posteriorly and superiorly it had more of 
its natural structure, but was studded with red, vascular, and 
indurated patches, giving it a variegated appearance. 
The abdominal viscera and the interior of the intestines were 
free from worms. The mesenteric glands were not enlarged. 
As the summer has been very dry, and the water of which 
the cattle drink in our neighbourhood is mostly stagnant, I con¬ 
sider the calves to have taken the ova up in drinking, and which 
passed into the circulation, and were arrested in their progress in 
the place where nature designed them to be brought to maturity. 
Since the calf died from which these worms were taken, I 
have had another placed under my care, upon which I performed 
the operation of tracheotomy. I then passed a whalebone pro¬ 
bang through the wound up the trachea as far as the larynx, but 
I could not reach any worms, nor was I more successful in pass¬ 
ing it down to the commencement of the bronchial tubes; but 
the animal received great and immediate relief from the opera¬ 
tion. From being much emaciated, and breathing very quickly 
and laboriously, and the countenance expressing oppression and 
distress, it became more lively—its breathing was slower and 
quieter—it gained flesh; and although, the wound now closing, 
it is not quite so well as it was, yet it is in a far better state than 
before the operation. 
I consider this operation a failure as to its enabling me to ex¬ 
tract the worms, but it is certainly highly useful in affording so 
much relief. 
I am trying the effect of Indian pink, combined with saline 
medicines; at the same time compelling the animal to inhale the 
vapour arising from melted tar and turpentine. I can say no¬ 
thing of the ultimate effect of this mode of treatment at present, 
but it certainly has relieved the urgent symptoms. 
I shall feel obliged by your inserting this letter in The Ve¬ 
terinarian, in order that the attention of practitioners may 
be brought so to bear upon this subject that some efficient mode 
of cure or of relief may be suggested. Clater, and some other 
writers, describe a mode of treatment which I should consider 
would aggravate rather than cure the disease, even if adopted, as 
