No. 8: Sun Cholera. Dose, one every three hours. Indications, similar to No. 3, only more powerful, valuable in severe summer complaint due to eating fresh fruit, meat, drinking too much water. Relieves gastric pain. No. 9: Apomorphia hydrochlorate, gr. 1/10. Dose, two tablets followed by swallow of hot water. Indications, as an emetic in poisoning. Use cautiously. No. 10: Digitalin, gr. 1/100. Dose, one tablet every hour to effect. Indications, the most powerful heart tonic and reconstructive. Must be used cautiously. Valuable in loss of blood, excessive heart action from altitude, and all conditions where heart is not performing properly. It will be noted that I did not mention morphine, strychnia, or cocaine, as they were spoken of in connection with the hypodermic. In the case I also place a one-minute clinical thermometer. All of these instruments are now made self-registering and must be shaken down after each using. This should be done, not by a jar, but with a long sweep of the arm. Too sudden a jar will snap the instrument in two. Shake until the mercury column stands below the △ mark. This △ mark indicates the body heat at normal condition, that is, 98.4° F. Every man should familiarize himself with certain physiological facts, and with these as guideposts he ought to be able to follow a train of indications to a reasonably fair diagnosis. The pulse rate, taken at the wrist, is generally a fair index of the condition of the body. The normal man has a pulse rate of about seventy-two beats per minute, women somewhat more rapid; high elevations also produce a more rapid pulse. If there is an increase of heart beat above eighty per minute, accompanied by other subjective symptoms, it is an indication that something is wrong. In the absence of a clinical thermometer, one can arrive at a pretty fair knowledge of the body heat by counting the pulse. It is estimated that there will be an elevation of one degree F. for every ten beats above the normal. This rule varies, but is a fair average. The appearance of the tongue is a valuable signpost, but one that is difficult of mastery. A few prominent indications will be noted. A thin, white, even furring of the tongue is indicative of gastric disturbances and mild fever states. A flabby, swollen, indented tongue covered with a uniform yellow, pasty fur is indicative of profound gastric states and gastro-duodenitis; it may also be produced by a continued moderate fever.