Even before Dr. Beauperthuy’s remedy had lost its reputation, a new specific remedy appeared in the East Indies, viz., _Gurjun oil_, introduced by Surgeon-Major Dougall, of the Andaman Islands. The oil is procured from several species of Dipterocarpus, principally D. lævis, D. tuberatus, and D. trinervus. Dr. Dougall’s method of treatment was the following: good nourishment, fresh air, and a mixture of gurjun oil and lime water internally and externally. For internal use he gave a mixture of equal parts of oil and lime water, which forms a tolerably thick emulsion, 15 grains morning and evening. Externally, he used an ointment of oil 1 part, and lime water 3 parts. With this the patients rubbed the whole body for two hours both forenoon and afternoon. The body was thus covered with a sticky layer, to which dust and dirt adhered. To remove this, the patients rubbed themselves every morning with dry earth, and afterwards took a bath in running water, before again applying the oil. The prolonged rubbing he considered not only beneficial to the skin, but useful as a gymnastic exercise. Of twenty-four lepers whom he treated in this way for six months, all, without exception, improved; all ulcerations healed without again breaking down; and, what is most remarkable, the anæsthesia almost or completely disappeared. According to his description of the patients, some of them evidently had syphilis, some chronic eczema, and some psoriasis. Their ulcerations had been so neglected that flies laid eggs in them, and it is little wonder that they healed under the cleanliness which Dr. Dougall induced. That old anæsthesia should disappear within six months, is, to any one who knows leprosy, absolutely incredible. In the summer of 1887 the Lungegaard’s hospital got a sample of the oil, and nine male lepers underwent Dr. Dougall’s treatment, the only difference being that they took a warm bath instead of a bath in running water, which Dr. Dougall probably ordered because he had no bath-rooms at his disposal. Every morning and evening the patients took 15 grains of the mixture of equal parts of oil and lime water. In the forenoon, from 9 till 11, and in the evening from 5 till 7, they rubbed each other in a room at a temperature of 26 to 28° R., with oil 1 part and lime water 3 parts. In the morning they rubbed themselves with dry earth, and took a warm bath before re-applying the oil. The treatment led to no results. In some of the patients the disease advanced very little, but, nevertheless, the gurjun oil had no effect. As leprosy, so far as we know, is the same disease in the East Indies as in Norway, it was surprising that the gurjun oil should cure it in the one place and not in the other. Later trials of the treatment in India have had the same negative results as in Norway.