The National Museum is unique among permanent museums in having large sections of its collections almost constantly away from it. It made displays at London in 1883, at Louisville in 1884, at Minneapolis in 1887, at Cincinnati and Marietta in 1888, at Madrid in 1892, at Chicago in 1893, at Atlanta in 1895, at Nashville in 1896, and at Omaha in 1898. The injury to the museum resulting from the packing and transportation of specimens and from the interruption of systematic work and development has been keenly felt at times by the scientific staff. The advantages have consisted in showing to the people of many sections of the country what the museum is doing, in securing collections that otherwise would not have been obtained, and in extending the educational sphere of influence. RELATIONS TO THE SMITHSONIAN INSTITUTION.--The museum is a child that has by its vigorous growth already overshadowed the parent institution in the extent of its buildings, its expenditures, and its direct influence upon the people of the United States. In the larger fields for which the Smithsonian Institution was organized, for the purpose of increasing and diffusing knowledge among men throughout the world, the museum is subordinate to the institution, and if the latter is administered in the future as it has been in the past, it will continue to hold a unique place among all institutions for the increase and diffusion of knowledge. In 1877 Prof. Asa Gray, as chairman of a special committee of the Regents of the Smithsonian, submitted a report which recommended that a distinction between the institution itself and the museum under its charge should be made as prominent as possible. The fear was expressed that if the museum was developed to its full extent and importance within the Smithsonian Institution it would absorb the working energies of the institution, and it was thought that such a differentiation would pave the way to entire separation of administration or to some other adjustment, as the Board of Regents might think best or be able to accomplish. Professor Baird, in 1878, in his report to the regents, called attention to the frequent mention in the reports of his predecessor of the relations existing between the Smithsonian Institution and the National Museum, and remarked that "it is only necessary to mention briefly that the museum constitutes no organic part of the institution, and that, whenever Congress so directs, it may be transferred to any designated supervision without affecting the general plans and operations connected with the 'increase and diffusion of knowledge among men.'"