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To the Editor:
—In The Journal, May 18, Dr. Zan D. Klopper of Chicago has an article entitled "The Practicability of the Modification of the Lavatory Chamber." This is not a new idea, as the late Dr. B. Howard Rand, professor of chemistry in Jefferson Medical College, in 1876, drew a diagram similar to Figure 2 in Dr. Klopper's article, on the blackboard before his class. His idea was superior to Dr. Klopper's, as he not only embraced all of the doctor's but he had a cover to the seat with a spring attachment to compel the individual to keep his body bent forward. The idea was not only to aid defecation but to prevent the occurrence of a hernia.
—Dr. Klopper claimed no originality for the theory. The physiologic basis for the position which he described has been understood for many years. He did, however, work the matter
Potsdamer JB. MODIFIED LAVATORY CHAMBER. JAMA. 1918;70(21):1562. doi:10.1001/jama.1918.02600210052027