Professor W. F. Willcox of Cornell University gave the second of his series of three lectures yesterday evening, on "The Population of the United States."

European governments, Professor Willcox said, have long realized the importance of vital statistics, which the United States did not seriously consider until the last census. On the records then obtained, however incomplete, we may base a comparison of the populations of Europe and the United States. Europe, which comprises only one-fifteenth of the total land area of the world, supports one-fourth of its population. At present the rate of increase of population in the United States is nearly twice as large as that of Europe, but the two are gradually approximating. He then went on to show that the heavy influx of immigrants into the United States had not deteriorated the population.