_Treatment._—The patient should be put to bed, hot fomentations applied to the seat of pain, and the bowels well relieved. Emetine should be at once administered as for dysentery, or ten grains of ipecacuanha should be given three times a day. Ammonium chloride in full doses (twenty grains three times a day) often does good, and can be retained when ipecacuanha cannot, but it is unpleasant to take, so the dose should be given in one or two ounces of water. The wisest course for one who has had a severe inflammation of the liver is to get away to a healthy climate. _Liver Abscess._ It is extremely difficult for the traveller to decide if abscess of the liver is present; it may be suspected if a patient, convalescent from dysentery, still remains feeble and ill, or if he has an irregular temperature, a muddy complexion, night sweats, wasting, and pain or uneasiness in the right shoulder. Sometimes a definite swelling can be made out. A dry cough is not uncommon. _Treatment._—Emetine is the specific treatment for the prevention of liver abscess, and it would seem in some cases actually able to bring about a cure even when the abscess has formed. It should be given as for amœbic dysentery (p. 187), and it is essential that a patient with liver abscess should as soon as possible come under medical control, as it may be necessary to give emetine by the needle subcutaneously or even to inject it into the abscess cavity. Ammonium chloride may be given; the patient’s strength must be supported, and he should be as quickly as possible placed under the care of a surgeon, who will probably decide to operate. If this cannot be done, then the patient should not be interfered with surgically, for he will have a better chance of recovery if the abscess is allowed to burst naturally than he would if the traveller attempted to operate. _Malaria._ Of all diseases in the tropics malaria is the one which is most likely to trouble the traveller. Hence it is essential that he should be well posted regarding it. In addition to the books which have already been indicated he will find the recently published ‘Malaria at Home and Abroad,’ by Colonel S. P. James, a work of much value and interest. It is true it is more especially intended for the medical man, but any intelligent layman can study it with interest and profit, and the chapters dealing with prophylaxis and treatment are specially valuable and well up to date. Here it is possible to give only a mere outline of the chief facts concerning the disease.