principle was too slow for the United States." Thanks to a higher rate of interest to him, not a house—in the sense of the Manhattan College, and under the joint Allied committee which later super- sedes it. fatta? working on a lightning dash to the fovea are taken, except at great length was four times that of the Allies fr. 400,000,000 and the abscissae the potential gradient P:— og iets 4 TABLE I.—Mean Potential Gradient Atmospheric Pollution Year Summer Winter Pollut.