to northern Mexico (1890). In 1895 he subscribed to the Cope 
Collection of North American fossil mammals, and in 1902 he 
presented to the Museum the Cope Collection of fossi] amphibians, 
reptiles and fishes. From time to time he contributed large sums for 
the development of the mineral collections. His lesser gifts are too 
numerous to mention, but we may single out among the more recent 
the New Zealand and Rio Negro ethnological and zoological collections. 
One of his most beautiful and characteristic gifts was a series of marble 
portraits of distinguished American men of science (1906). In 1904 
he especially urged upon the Trustees the importance of raising the 
Permanent Endowment Fund and contributed $200,000 therefor. 
There were two grandly distinctive features of Mr. Jesup’s plans 
and of his administration. 
First, his desire to popularize science through the arrangement and 
exhibition of collections in such a simple and attractive manner as to 
render them intelligible to all visitors. To the same end of popular 
education he favored Sunday opening and the opening of the Museum 
evenings in order that working men and others closely occupied during 
the day might attend. The establishment of the public lectures under 
Professor Albert S. Bickmore, bringing the Museum into closer connec- 
tion with the work of the State Department of Public Instruction, was 
one of the first features of his administration, and led to the general 
institution of public courses of lectures. He finally favored and put into 
practice the free opening of the Museum on every day of the week. 
The second great feature of his administration was his recognition 
that at the foundation of popular science is pure science, and _ his 
determination, which increased with advancing years, that the Museum 
should be as famous for its scientific researches and explorations as for its 
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