106 The Kallikak Family sufficient to nearly, or quite, offset the expense of the new plant. Besides, if these feeble-minded children were early selected and carefully trained, they would become more or less self-supporting in their institutions, so that the expense of their maintenance would be greatly reduced. In addition to this, the number would be reduced, in a single generation, from 300,000 (the estimated number in the United States) to 100,000, at least, -- and probably even lower. (We have found the hereditary factor in 65 per cent of cases; while others place it as high as 80 per cent.) This is not the place for arguing the question or producing the statistics to substantiate these statements. Suffice it to say that every institution in the land has a certain proportion of inmates who not only earn their own living, but some who could go out into the world and support themselves, were it not for the terrible danger of procreation, -- resulting in our having not one person merely, but several to be cared for at the expense of the State. These statements should be carefully considered and investigated before any one takes the stand that segregation in colonies and homes is impossible and unwise for the State. The other method proposed of solving the problem [end]