Great Ormond Street Hospital Barrie's copyright to the "Peter Pan" works, with the provision that the income from this source not be disclosed. This gave the institution control of the rights to these works, and entitled it to royalties from any performance or publication of the play and derivative works. Four theatrical feature films were produced, innumerable performances of the play have been presented, and numerous editions of the novel were published under licence from the hospital. Its trustees commissioned a sequel novel, "Peter Pan in Scarlet", which was published in 2006 and received mixed reviews, with a film adaptation planned. When the copyright
Children's Hospital of Philadelphia had a population of about 460,000, and recorded 10,507 deaths. Leading causes of death were smallpox, typhoid, and scarlet fever. In the worst month of 1855, 300 children under 12 years old died, primarily of infectious diseases. A Philadelphia physician, Dr. Francis West Lewis, inspired by a visit to the new Great Ormond Street Hospital for Sick Children in London (founded 1852), enlisted Drs. T. Hewson Bache and R. A .F. Penrose Sr. to found the first children's hospital in North America. On November 23, 1855 the following small advertisement appeared in the "Philadelphia Public Ledger": The Children's Hospital—located on