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the heat content of Zn, plus the heat content of CO, a t each temperature. The steps SM and LV show respectively the heat of liquefaction of the zinc a t 419.4'C., and of its vaporization a t 907°C. In the condensation of zinc from a cooling mixture of CO and zinc vapor, condensation would begin a t some lower temperature (that is, below 907") and would continue over a range of temperature, so that there would be a curve instead of the horizontal line VL.= In plotting this diagram, the writer took the specific heats of ZnO and CO from the International Critical Tables, and also the heats of fusion and vaporization of zinc, but was obliged to use Richards' values for the specific heats of solid, liquid, and gaseous zinc. In Figure 5 the lines AB and DC of Figure 2 have been extended until C is to the left of A. The point G, where DC cuts AE, gives the temperature resulting from the reaction, if we begin with the reagents a t 0' and if no heat leaves the system. Starting with the reagents a t any particular temperature, shown by the point P, the horizontal intercept PH is the heat given out by the reaction a t that temperature, that is isothermally, while the vertical intercept PT is the rise of temperature produced by the reaction without loss of heat, that is, adiabatically.
'Stansfield, "The Electric Furnace," 1914, p. 331.
Dried Hog Stomach New, Cheaper Anemia Remedy. Dried stomachs of hogs may s w n vie with livers as the saviors of sufferers from pernicious anemia. This newest anemia remedy, made from one of the few unused parts of hogs, has just been developed and announced hy Drs. Cyrus C. Sturgis and fiaphael Isaacs of the Simpson Memorial Institute for Medical Research of the University of Michigan and Dr. Elwood A. Sharp of the Department of Experimental Medicine of Parke, Davis and Company. An ounce of extract from the dried, ground stomachs of hogs is said to he as effective a remedy in pernicious anemia as a pound of raw liver or three ounces of the most concentrated liver extract yet made. This is the latest step in the conquest of a disease, pernicious anemia, which a few years ago was in the category of the unvanquished ills of mankind. In 1926 i t was found that by feeding liver to anemia patients, their red blood corpuscles could be increased. Liver, once the poor man's meat. increased in price rapidly. Then the active principle in liver was extraded so that anemia patients could take small doses of the extract instead of eating- large of the liver itself. Now comes the new and - quantities . cheaper source of the anti-anemia principle which promises splendid results. The new extract from hog stomach is not yet commercially available. But i t will be far cheaper than liver or the costly liver extracts on which pernicious anemia patients until now have been dependent. Hogs' stomachs are largely a waste product, findiuc only slight use in the production of pepsin. The dried extract is pra&cally tasteless and looks something like sawdust particles. Beef stomach and ox stomach are sold as tripe, which is a familiar food to many. Hog stomach, which has a different structure, is ground and dried t o make the new extract. An immediate increase in the number of red hlood cells took place when this dried hog's stomach was fed to patients suffering from pernicious anemia. The increase was even greater than that following liver treatment.-Science Semite
