. Diseases of the nose and throat . n one of the hydrocarbon oils and packed, fold after fold, back as 108 DISEASES OF THE NASAL PASSAGES. far as the posterior choanae. Another method, which he considersequally efficacious, in the checking of deep haemorrhage, is to soaka loose piece of absorbent cotton in a 15-volume solution of peroxideof hydrogen, and to press it along the inferior meatus to the pos-terior naris, as in the first method. He claims that by this meansposterior packing can be avoided. In post-rhinal haemorrhage from malignant or fibroid diseasesthese methods may all fail; then
. Diseases of the nose and throat . n one of the hydrocarbon oils and packed, fold after fold, back as 108 DISEASES OF THE NASAL PASSAGES. far as the posterior choanae. Another method, which he considersequally efficacious, in the checking of deep haemorrhage, is to soaka loose piece of absorbent cotton in a 15-volume solution of peroxideof hydrogen, and to press it along the inferior meatus to the pos-terior naris, as in the first method. He claims that by this meansposterior packing can be avoided. In post-rhinal haemorrhage from malignant or fibroid diseasesthese methods may all fail; then Bellocqs cannula (Fig. 55) will doexcellent service. The objection to this instrument when first intro-duced was on account of the curve in the tube. That, however, hasvanished, as the instrument now in use is almost straight. The ob-ject aimed at is to plug the posterior naris of the bleeding side firstand the anterior naris afterward. The cannula is threaded with astrong cord through the eye of the spring. The thumb-screw is next. Bellocqs cannula. adjusted so that it will retain the spring within the cannula. Thenthe instrument is passed along the floor of the inferior meatus untilthe end projects beyond the velum. The spring is now touched andthe cord is at once seen within the mouth. To this cord is fastened apledget of wool large enough to fit the posterior naris. Then thecannula is withdrawn, the wool pulled through the nostril into posi-tion, and cut loose. In drawing the cotton through the naso-pharynxit can be guided in its course by the finger of the left hand of theoperator. It is claimed that the cotton plug should be large enough to fillboth posterior nares, as otherwise the haemorrhage might continuefrom the free side. This looks like false logic, as there is no naturalcommunication between tbe two passages. In a case of a severe haemorrhage from nasal fibroma, the onlyoccasion in which I have ever required to use this instrument, I EPISTAXIS. 109 plugged the one
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