5. Barley, a known preventive of beriberi, should be used in all soups. 6. If corn meal is the staple of diet it should be yellow meal or water-ground meal, i.e., made from the whole grain. 7. White potatoes and fresh meat, known preventives of beriberi, should be served at least once a week, and preferably once daily. 8. The too exclusive use of canned food must be carefully avoided. McCarrison has noted the value of onions even in a diet in which protein and vitamine constituents are sufficient. The onions seem to inhibit the growth of putrefactive bacteria. =Treatment.=—The most important treatment is that of the substitution of a diet containing the essential vitamines for the beriberi-producing one. In carrying this out regard must be had for the customs and tastes of the race concerned. Thus fresh beef may be excellent for some people but objectionable to others. Eggs, particularly the yolk, are very valuable as is also true of unsterilized milk. Extract of rice polishings has given splendid results in infantile beriberi but does not seem to have been as efficacious in the disease in adults. Yeast has great curative value. An extract of yeast known as _marmite_ has achieved reputation when given in doses of 20 grains daily. Seidell has recently used an autolyzed brewers’ bottom yeast. By treating this material with Lloyds’ reagent he has extracted the vitamines so that instead of having to give 200 cc., a dose of 10 grams of the concentrated product suffices. Malt extract is very rich in vitamines and liver seems to have a higher content than beef muscle. Fat soluble A vitamine is abundant in glandular organs but scarcely present in the beef of our markets—this is probably true of water soluble B. Heart muscle is about on a par with liver. Germinating wheat and beans seem to have special value in treatment as well as prophylaxis. In the treatment of a case care must be had not to allow a patient with any cardiac involvement to sit up in bed as this may cause sudden death. Braddon considers atropine hypodermically as of value in cardiac types of cases. Amyl nitrite inhalations or injections of 1% solution of nitroglycerine are indicated when there is evidence of extreme cardiac dilatation. Venesection is also to be kept in mind. Cardiac tonics are of less value than rest, diet and venesection. In the feeding of such patients only small amounts should be given at a time to avoid epigastric distress. Again carbohydrates should be restricted as there is evidence that excess of carbohydrates as well as vitamine deficiency may be concerned in the disease. The bowels should be kept open with salines. Mineral oil tends to keep down intestinal putrefaction which is a factor of importance.