The following observations are the result of two years' examination of the stools of patients invalided to and stationed in Malta. The patients may be roughly divided for convenience into four groups:

(1) Troops sent straight from the Salonika Hospitals to Malta. This section comprised the bulk of the total number of troops examined, and included a few men from Egypt.

(2) Garrison Troops—some not patients—including both British and Maltese. With these are included a few British and Maltese Civilians,. connected in some way or another with the Army.

(3) Troops on their way out from England or France. These were mostly Indians and Chinese, who were put off transport at Malta owing to disability.

(4) Prisoners of War interned in Malta.