Thomas Jefferson Papers

Thomas Jefferson to Robert Patterson, 22 December 1815

To Robert Patterson

Monticello Dec. 22. 15.

Dear Sir

Of the last 5 months, I have passed 4. at a possession I have 90. or 100. miles S.W. from this. this must apologise for my having to acknolege your three favors of Oct. 24. Nov. 28. & Dec. 2. all at the same time. on my return, I make it my first duty to comply with your request of Dec. 2. by writing to the President on behalf of mr Hassler, which I have done by this mail. I am sure he will do for him whatever he can with propriety. the collection of instruments he has brought us is really superb, and it gives me great pleasure that they are placed under your care. pressed by the numerous letters accumulated during my absence, I have only had time to read your favors of Oct. 24. & Nov. 28. & to be sensible how much I am indebted to you for them, for your trouble with my timepiece, for the artificial horizon & the fulness of your explanations of the manner of using it. with my thanks for all these kindnesses Accept the assurances of my affectionate & friendly esteem and respect

Th: Jefferson

RC (PPAmP: Thomas Jefferson Papers); at foot of text: “Doctr Robert Patterson.” PoC (DLC); on verso of reused address cover of Peter Stephen Chazotte to TJ, 6 Oct. 1815; endorsed by TJ.

Index Entries

  • artificial horizon; instructions for use of search
  • artificial horizon; sent by R. Patterson search
  • clocks; TJ’s astronomical case clock search
  • Hassler, Ferdinand Rudolph; and instruments for U.S. Coast Survey search
  • Hassler, Ferdinand Rudolph; financial claim on U.S. of search
  • Madison, James (1751–1836); and F. R. Hassler’s claim search
  • Patterson, Robert; and artificial horizon search
  • Patterson, Robert; and astronomical case clock search
  • Patterson, Robert; and F. R. Hassler’s claim search
  • Patterson, Robert; letters to search
  • Poplar Forest (TJ’s Bedford Co. estate); TJ returns from search
  • scientific instruments; artificial horizon search
  • scientific instruments; for U.S. Coast Survey search