This section is from the book "The Dog And The Sportsman", by John Stuart Skinner. Also available from Amazon: The Dog And The Sportsman.
The throat of the dog exhibits yet another kind of tumour. On either side of the windpipe, sometimes high up in the neck, at others almost as low as the chest, will be felt an oval, movable, hard tumour, varying in size from a sparrow's to a pullet's egg. The pug, the Italian greyhound, and the Blenheim spaniel, are particularly subject to these tumours. In the pug they are often exceedingly large. The jugulars pass over them, and become strangely turgid, from the necessary impediment to the circulation which such tumours must cause. The tumour sometimes presses upon the windpipe, and the dog breathes with difficulty, and has, in a few instances, been literally suffocated.
A seton passed through these tumours would produce immense irritation, and cause them to increase to a strange and fearful degree. Every external stimulating application has done harm, and the practitioner is left to the efficacy of medicine alone; but fortunately he has a medicine that will rarely fail in considerably diminishing the bulk of these tumours, and, in some cases, it will disperse them altogether.
Take - Iodine, twelve grains ;
Powdered gum arabic, two scruples: Hub them together with simple syrup, and form a hard mass. Divide into forty-eight pills, end give one or two, according to the size of the dog, morning and night.
Being very small, they can easily be concealed in bils of meat or bread and butter, and may, in the generality of cases, be given for a great length of lime without any inconvenience, and especially if a. dose of castor-oil, or Epsom salts, is administered when the bowels are constipated; or once in every week or ten days, whatever may be the state of the bowels.
The approach of any inconvenience resulting from the use of the iodine will be indicated by the dog rapidly losing flesh; and in such. case nothing more is necessary than to omit the pills fur a week, and then give them again as before. ;
 
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