"It is a fact that the American family with more than one or two children is the exception. From the records of six generations of families in some New England towns, it was found that the families comprising the first generation had on an average between eight and ten children; the next three generations averaged about seven to each family; the fifth generation less than three to each family. The generation now on the stage is not doing so well as that. In Massachusetts the average family numbers less than three persons. In 1885 the census of Massachusetts disclosed that 71.28 per cent of the women of that State were childless. The census of 1885 in the State of New York shows that twenty-five per cent of the women of that State are childless, fifty per cent average less than one child, and seventy-five per cent average only a trifle over one child. "Southern California has fully as dark a record as New England--that is, in the family where the man and wife are American-born. It goes without saying that the medical profession in this country is composed to a great extent of typical progressive Americans, and I ask you to make mental statistics of the children in the families of the physicians in Southern California, and you will find very few of them containing more than two. "Had the Rev. T. R. Malthus lived in the United States to-day, he would never have argued about the danger of over-population, as he did in his interesting volume on 'The Principles of Population.'" After quoting the views of Plato, Aristotle, and Lycurgus, Dr. Lindley continues: "In Southern California there are, it is true, many children, but the average American family is very small. "As I sat writing this an evening or two ago, I jotted down the names of twenty-five families of my acquaintance in Los Angeles, taking them as fast as I thought of them. The list was composed entirely of professional and business men ranging in age from thirty-five to fifty. All had been married quite a number of years. The result of my memorandum was that in these twenty-five families there were but eighteen children. These families were wholly unselected, and are about the average Protestant American families outside the rank of laborers. "What are the causes of this small proportion of children? Disease, preventives of conception, and abortion form the trinity of responsibility in this grave condition. It is true that the first cause (disease) results in many women being barren, but I believe that you will agree with me that the last two causes, preventives of conception and abortion, are the two chief causes.