Foreign Extracts

much alike that serological experiment shows that by the presence of syphilis-antigen the presence in the serum of a yaws patient of framboesia-antibodies is made evident (by complement, deviation), yet the two diseases are distinct. For, as Charlouis pointed out, many years ago, the fact that a man is suffering from yaws does not protect him against luetic infection, and conversely, as Neisserias found by inoculation of apes, the presence of syphilis does not protect against infection with framboesia. I" both diseases iodide of potassium has a very powerful action in modifying the efflorescence In yaws the use of sitoxyl is of the greatest benefit ?(Archiv f? Schiffs u. Tropen-Hygiene, 1908, p. 173) Schlecht suggests the following simple method of examination of the functional activity of the Pancreas : In the morning the patient receives a clyster, preferably of glycerine, and after this has acted he takes a test-meal, and two hours thereafter he receives a dose of calomel (3 cgm.), with or without 5 cgm. of purgen (phenolplithalein) as an adjuvant. The stools thus obtained are examined when they are slightly alkaline, preferably with the addition of some glycerine, by being sown in droplets on serum-plates and cultivated in the thermostat for 24 hours at 55-000.? If trypsin is present we shall then find a more or less evident umbilication, which is absent where trypsin is uot present. The stools may be best rendered alkaline by the addition of weak soda solution. The addition cf glycerine is made with a view to prevent too rapid drying of the preparation. The giving of calomel is to make sure that the contents of