There are three principal divisions of these injuries, which may be produced by hot fluids, vapor, flame, or solids.

1st. Those which produce mere redness and inflammation, terminating in resolution, and perhaps desquamation.

2nd. Those causing blisters on the skin, which often dry up and heal; but if the true skin has been injured and inflamed, suppuration, and ulceration will result.

3rd. Those causing the death of the part, in which there is not much pain, and which are followed by sloughs.

Extensive burns, even if superficial, are very dangerous, and those upon the trunk are more dangerous than those upon the extremities. The symptoms are paleness and shivering, with a feeble, quick pulse, often prostration, coma, and death. The greatest danger is during the first four or five days, from collapse; subsequently from an affection of the head, chest, or abdomen or from prostration.

TREATMENT. -- Bathing the part in cold water will mitigate the pain, heat, and inflammation. Afterwards it must be protected from the air by raw cotton, or some bland unctuous substance. My "Herbal Ointment" gives instantaneous relief. Glycerine and carbolic acid are used by some, and linseed oil and lime water, or linseed oil, prepared chalk, and vinegar, by others. The indication is only to exclude the air. The blisters should be discharged of their contents, care being taken that the skin is not removed. The nervous excitement is to be calmed by opium, and sinking prevented by stimulants, but care is to be taken that over-stimulation does not result. The separation of sloughs is to be promoted by rest, poultices, and fomentations. In joints passive motion is to be made to prevent stiffness.