1To Thomas Jefferson from Charles Willson Peale, 12 January 1802 (Jefferson Papers)
The laborious, tho’ pleasing task of mounting the Mammoth Skeleton being done, gives me leisure to attend to other Interests of the Museum. The constant accumulation of articles not only of this but also of other Countries—increasing my imbarrisments to know how to dispose them for exhibition and public utility—these difficulties I expect will be greatly encreased after my Sons have visited...
2Enclosure: Substance of an Address, [ca. 12 January 1802] (Jefferson Papers)
The time is now fully arrived when it has become expedient to decide the fate of the Museum to which Pennsylvania has given birth. It has commanded every exertion in my power for 16 years, and meeting with public approbation has certainly arrived to considerable Maturity; but from the uncertain tenure of human life it may not long continue in the same circumstances in which it has progressed,...