1James Madison to Ferdinand R. Hassler, 25 September 1828 (Madison Papers)
Your letter of the 8th. with two copies of your "Elements of Geometry" came to hand when a spell of sickness prevented me from making the proper acknowledgements. I now beg of you to accept them, particularly for the copy allotted to myself. That for the University has been duly forwarded and will there find a better capacity than I possess to do justice to the work. I can only repeat to you...
2James Madison to Ferdinand Rudolph Hassler, 22 February 1833 (Madison Papers)
I have recd. your favor with the accompanying Copies of your Report on Weights & Measures, & I have forwarded the two, one for Professor Patterson, & one for the University of Virginia; and shall dispose of the others as you desire. For the Copy alloted to myself, I return you my thanks. The decrepit state of my health, added to my great age & other causes, have prevented me from looking much...
3James Madison to Ferdinand R. Hassler, 6 March 1828 (Madison Papers)
J. M. presents his respects to Mr. Hassler with many thanks for the "Popular Exposition of the System of the Universe". politely sent & just recd; to which he adds his good wishes for the success, to wch. such a work executed with the known ability of the author can not fail to be entitled. Every insight into the grandeur & structure of the universe, having a happy tendency at once to expand...
4James Madison to Ferdinand R. Hassler, 11 February 1835 (Madison Papers)
I have received your communication relating to the survey of the coast and thank you for it. Finding that my great age now within a few days of its 85th. year, with a constitution & health severely crippled by disease did not permit me to give the attention due to the printed Documents, I can only refer to my former letters for an expression of the sentiments and good wishes retained for you...
5James Madison to Ferdinand R. Hassler, 24 June 1830 (Madison Papers)
I have recd. with yr. letter of the 14. 2 Copies of yr. Logarithmic & Trigonometric Tables, and have forwarded to the University the one presented to its Library. For the other I return my personal thanks with an offer of my best wishes that yr. labours in the cause of Science may be duly rewarded With cordl. salutations RC (NN) ; FC (DLC) .
6James Madison to Ferdinand R. Hassler, 01 September 1828 (Madison Papers)
I have recd. Sir, your letter of Aug. 31st with the 2 Copies of your "Elements of Analytic Trigonometry." For the one to be retained by myself, I tender my thanks: The other will be disposed of as you request. Not pretending to be a competent judge, of the merit of the work, I can only express the confidence in it, derived from the high estimation in which your Scientific character has been...
7James Madison to Ferdinand R. Hassler, 2 July 1835 (Madison Papers)
I have just recd. your letter of the 29th. June, and immediately commicated your object to the Rector of the University with an expression of your scientific qualifications for the professorship lately vacated. With friendly respects & good wishes FC (DLC) .