ROUGH-AND-READY PILLS. 11 the station, the fort is practically impregnable. The aneroid read at the bottom of the mound 28*19 (1660 feet), at the top 28-10 (1710 feet).

x\n unusually large number of persons, both officials and their wives, and natives, came to consult me medically; most of the cases were chronic, and but little good could be done. One native came with elephantiasis, but I could do nothing for him, as my stay was so short. I may here say that it is a great mistake to think it is easy to treat natives successfully, and that any medicine will do for them.

It is by no means easy, some natives being far more susceptible to medicine than others, and both doses and drugs given requiring to be adapted to them ; then again, one tribe differing much from another in susceptibility. I noticed three belts of very marked difference, one up to Khartoum, one from Khartoum to Dufli, and the third from Dufli to the Equator.

The rough-and-ready pills, recommended by many travellers, cannot be given on all occasions, and frequently do more harm than good. It is quite true that the natives put unlimited faith in the white man's medicine, but for this very reason the greatest care should be taken not to bring it into disrepute. With Arabs it is well to feel the pulse at both wrists, for they believe in a right and left circulation, and if only one pulse is felt they regard the doctor as a quack.

I saw eleven natives sufferino- from well-marked