12 JANUARY 1924, Page 9

The New York New Republic contains an interesting article by

Mr. Alvin Johnson, entitled" Are We in Danger of Over-population ? " The writer makes several refer- ences to Professor East's recent book, entitled Mankind at the Cross-roads. Bearing in mind the fact that the population of the world has doubled in the last hundred years and that the rate of increase is greater to-day than the average for the last century, the writer estimates that in fifty years, at the present rate of growth, we should have 3,500,000,000 people in the world instead of the 1,700,000,000 as at present, and by the year 2040 there would be 7,000,000,000.