32
JOURNAL OF CHEMICAL EDUCATION
JANUARY, 1930
Based upon first-hand laboratory experience, theoretical conceptions should be developed, and their value and also their shortcomings should receive consideration. Practical applications should be called to mind throughout the course of study. Constructive theoretical ideas should be developed, which necessitates delving into the general subject of the nature and laws of electricity. In arranging the details of his course, the teacher must be guided by the advancement of his students, by what they hope to accomplish, and by the time and laboratory and library facilities a t his disposal. For these reasons no detailed lists of exercises have been presented, but the principles which guide and determine the prescribed work in a course in electrochemistry have been stressed. UNITED STATES CIVIL-SERVICE EXAMIFYATIONS The United States Civil-Servirr Commission announces the following open competitive examinations: PHYSICAL CHEMIST,$3800 t o 84400 a year; A s s o c r ~ r sCHEMIST, $3200 to $3700 a year; ASSISTANT CHEMIST, $2600 to $3100 a year. Applications must be an file with the Civil-Service Commission a t Washingon, D. C., not later than Deemher 31st. ,The examinations are to fill vacancies in the Federal classified civil service, for duty in Washington, D. C., or in the field. The optional subjects far associate and assistant chemist are (1) advanced inorganic chemistry, (2) analytical chemistry, (3) organic chemistry, and (4) physical chemistry. Competitors will not be required to report for examination a t any place, but will be rated on their education, training, and experience, and on a publication or thesis. Full information may he obtained from the Unyted States Civil-Service Commission, Washington, D. C., or the secretary of the United States Civil-Service Board of Examiners a t the post office or customhouse in any city.
New Anemia Remedy Inspired by British Discovery. The' new remedy for pernicious anemia, dried hog's stomach, was partly inspired by the work of a British scientist, Dr. W. B. Castle. I n pernicious anemia the red blood cells fail to mature properly. Dr. Castle demonstrated that the stomach of normal persons secretes a substance which could develop a blood-maturing principle from meat. Consideration of this led the University of Michigan scientists, Drs. Cyrus C. Sturgis and Raphael Isaaes, to test the effect of stomach tissue itself. Working on much the same theory, Dr. Elwood A. Sharp of the Department of Experimental Medicine, Parke, Davis and Co., arrived a t a similar decision. The three scientists then developed the new remedy together. Dr. Sharp believes it likely that liver or liver extracts supply an essential substance which is easily formed from ordinary food in the normal stomach hut which is imperfectly or scantily formed in the abnormal type of stomach found in the patient suffering from pernicious anemia. The search for this essential substance is now engaging the attention of the three scientists.-Science S e r z i u
