— 43 — Tuberculosis is best dealt with by instructing the patients and their associates in simple prophylactic measures.

Judging by the results obtained in the treatment of yaws in other parts of the province, this disease will probably decrease when closer medical attention is available.

The venereal disease is contracted mostly at the merakiz and the establish¬ ment of female venereal disease clinics there should check the spread of this disease. This is at present being done.

Malaria still remains the bete noir of the tribe and is likely to continue so until accurate investigation is carried out to ascertain the mosquito carriers and their breeding habits.

Prophylaxis could then be carried out by attacking the breeding grounds in close proximity to the larger villages.

Proposed lines of procedure during the continuation of the survey. Many of the points raised require elucidation by laboratory methods. It is proposed to continue the smwey equipped with a field laboratory. The following investiga¬ tions could then be carried out: — (i) Serological tests to determine the existence or otherwise of congenital syphilis or congenital yaws in the tribe.

(ii) Similar tests to determine the etiology of bone pains, ulcers and C.N.S. lesions.

(iii) To identify the causative organism of eye inflammations.

(iv) Further investigations in malariology (a) parasites, (b) mosquitoes, (c) acquired immunity and (d) splenic index.

(Signed) L. H. Henderson, t Medical Inspector.