1To Thomas Jefferson from Ferdinand Rudolph Hassler, 1 May 1826 (Jefferson Papers)
Circumstances induce me to attempt the publication of the courses of analytical trigonometry...
2Ferdinand R. Hassler to Thomas Jefferson, 10 December 1819 (Jefferson Papers)
Informed that the Institution of Learning to be established in Virginia , in the Conduction of...
3To Thomas Jefferson from Ferdinand Rudolph Hassler, 16 May 1826 (Jefferson Papers)
Your favor of the 5 th inst t has again highly obliged me by the kind interest you always take in...
4To Thomas Jefferson from Ferdinand Rudolph Hassler, 14 June 1824 (Jefferson Papers)
Some years ago I have taken the Liberty to offer to Your Excellency my services for the...
5To Thomas Jefferson from Ferdinand Rudolph Hassler, 23 March 1826 (Jefferson Papers)
As upon an advertisement of the University of North Carolina to get a Professor of Mathematics I...
6To Thomas Jefferson from Ferdinand Rudolph Hassler, 24 November 1825 (Jefferson Papers)
The confidence with which You have honored me in time by the truth You placed in me for the...
7To Thomas Jefferson from Ferdinand Rudolph Hassler, 20 February 1806 (Jefferson Papers)
Les Etats Unis d’Amerique, par la position floris, sante & paisible dont ils jouissent,...
8Ferdinand R. Hassler to Thomas Jefferson, 5 January 1820 (Jefferson Papers)
The favorable Recollection which Your Excellency is so kind to honor me with, in his letter of...
9Ferdinand Rudolph Hassler to James Madison, 6 February 1833 (Madison Papers)
In taking the Liberty to address to You herewith Copies of my Reports upon Weights and measures,...
10Ferdinand R. Hassler to James Madison, 8 September 1828 (Madison Papers)
With the present I take the Liberty to present to You two Copies of my Elements of Geometry which...
11Ferdinand R. Hassler to James Madison, 14 June 1830 (Madison Papers)
Permit me with the present to present to You a Copy of my logarithmic and trigonometric Tables,...
12Ferdinand R. Hassler to James Madison, 27 July 1835 (Madison Papers)
Your favor of the 2d. inst gave me great satisfaction, I thank to you very much for your kindness...
13Ferdinand R. Hassler to James Madison, 9 January 1835 (Madison Papers)
The Kind interest which You have always taken in the Work of the Coast Survey, occasiones me to...
14Enclosure: Ferdinand R. Hassler to Robert Patterson, 2 December 1816 (Jefferson Papers)
M rs Hassler told me You had mentioned her last Summer that it was desired a good Watchmaker...
15Enclosure: Ferdinand R. Hassler’s List of Scientific lnstruments Procured for the United States Coast Survey, November … (Jefferson Papers)
General List of Mathematical Instruments and Books, destined for the survey of the Coast of the...