Miss Nightingale had a large heart and an unprejudiced mind; she was open to discern character and efficiency in many different forms; but naturally there were those, among her pupils, by whom she was more particularly attracted. The letters just quoted introduce us to two of these. Of one of them Miss Nightingale noted in her diary, after the first interview: "Miss P. came. I have found a pearl of great price." The name was adopted, and she became in familiar correspondence "The Pearl." She filled important posts, and became one of Miss Nightingale's dearest friends. Of the other Probationer, she wrote: "Besides the pleasure of becoming acquainted with Miss Williams it was quite a pleasure to my bodily eyes to look at her. She is like a queen; and all her postures are so beautiful, without being in the least theatrical." This lady was "the Goddess" of the letters already quoted. She was for many years Matron of St. Mary's Hospital in London, with a Training School under her, and she was afterwards appointed Lady Superintendent of Nurses during the Egyptian campaign of 1884-85. Even her marriage shortly afterwards did not break her friendship with Miss Nightingale. Sometimes a pupil on leaving St. Thomas's would take a situation against Miss Nightingale's advice or without consulting her. "I should feel happier," wrote one pupil, "if you saw the matter in the same light as I do." I expect that in such a case the self-willed pupil had to do very well in her post in order to win Miss Nightingale's approval. There were few important posts in the nursing world which were not filled during these and the following years by pupils of the Nightingale School. An appointment which gave special satisfaction to Miss Nightingale and her Council was that of Miss Machin to be Matron of St. Bartholomew's (1878).[156] At one and the same time (1882), former Nightingale Probationers held the post of Matron or of Superintendent of Nurses in the following among other institutions:--Cumberland Infirmary (Carlisle), Edinburgh Royal Infirmary, Huntingdon County Hospital, Leeds Infirmary, Lincoln County Hospital; at Liverpool, in the Royal Infirmary, the Southern Hospital, and the Workhouse Infirmary; Netley, Royal Victoria Hospital; Putney, Royal Hospital for Incurables; Salisbury Infirmary; Sydney (N.S.W.) General Hospital; and in London, at Marylebone Workhouse Infirmary, the Metropolitan and National Nursing Association, the North London District Nursing Association, the Paddington Association, St. Mary's Hospital, and the Westminster Hospital. To many of these Institutions a large number of nurses, forming in some cases a complete Nursing staff, had been provided from the Nightingale School, and the result was the gradual introduction into British Hospitals of an organized system of trained nursing.[157] The movement was not confined to Great Britain. "Nightingale Nurses" became Matrons or Superintendents in many Colonies (_e.g._ Canada and Ceylon),