I can not answer your letter as I ought, because of the fool laws, but I will do the best I can. I sympathize most heartily with you in your need for authoritative data on the control of conception. My experience has matched yours precisely, in that patients are asking more and more for advice on methods. After some very humiliating and disastrous experiences several years ago because my patients acted on the half baked instructions I gave them, those being all I then knew,—I determined to study the subject as thoroughly as I could. Fortunately my trip abroad stood me in good service at the time, for I was able to visit several of the scientists who have made a special study of the subject and whose research covers a period of many years. I got most of my material in England and Germany. By sheer luck on my return, the customs officials did not inspect the books and the notes I had on the subject. But they could, and indeed they should under the law, have seized and destroyed them. The most comprehensive of the books is by Dr. ——[1] of London, a biologist of note who has done some exceptional research work. The book is printed by the well known medical publishers, ——. You might try ordering a copy, but the chances are that it would not come through, and that you would be only wasting your time and money. So I will send you my copy by today’s mail, insured, parcel post, and wrapped very securely. Let me have it back inside of a month if you can, for it is much in demand here. I am also sending with it a copy of some particularly useful items from my notes based on the experience of Drs. —— and ——, also a pamphlet which you may find more helpful than any other one thing, this latter being the work of an American physician, Dr. —— of ——. It can’t be signed of course on account of the laws, and it has to be circulated secretly. I find it excellent not only because of its brevity and soundness, but because it serves very well as a handbook of information for my patients, to supplement the instructions I give them personally. I think you will find yourself wanting a quantity for distribution, especially among your patients who ask your advice by letter, and who do not live near enough to come to your office. Of course you realize that I am a deliberate law-breaker in sending you this letter and parcel, but I would rather take a chance on being held up for it than to have you repeat my experience of advising people without adequate knowledge as to method. According to the law you will be just as bad as I, when you “knowingly” take from the mail the parcel I am sending. And worse yet, your State of Iowa has a law which makes it a crime to _have in your possession_ any instructions for contraception! So be cautious. Let me know if I can be of any further use. With best wishes, as ever (Signed)....................