Writings of Thomas Jefferson, Volume 6

Contents:
Author: Thomas Jefferson

To John Churchman.

PARIS, August 8, 1787.

SIR,—I have duly received your favor of June the 6th, and immediately communicated its contents to a member of the Academy. He told me that they had received the other copy of your memorial, which you mention to have sent through another channel; that your ideas were not conveyed so explicitly, as to enable them to decide finally on their merit, but that they had made an entry in their journals, to preserve to you the claim of the original idea. As far as we can conjecture it here, we imagine you make a table of variations of the needle, for all the different meridians whatever. To apply this table to use, in the voyage between America and Europe, suppose the variation to increase a degree in every one hundred and sixty miles. Two difficulties occur: 1, a ready and accurate method of finding the variation of the place; 2, an instrument so perfect, as that (though the degree on it shall represent one hundred and sixty miles) it shall give the parts of the degree so minutely, as to answer the purpose of the navigator. The variation of the needle at Paris, actually, is 21° west. I make no question you have provided against the doubts entertained here, and I shall be happy that our country may have the honor of furnishing the old world what it has so long sought in vain. I am, with much respect, Sir, your most obedient humble servant..

Contents:

Related Resources

Thomas Jefferson

Download Options


Title: Writings of Thomas Jefferson, Volume 6

Select an option:

*Note: A download may not start for up to 60 seconds.

Email Options


Title: Writings of Thomas Jefferson, Volume 6

Select an option:

Email addres:

*Note: It may take up to 60 seconds for for the email to be generated.

Chicago: Thomas Jefferson, "To John Churchman.," Writings of Thomas Jefferson, Volume 6 in Thomas Jefferson, the Writings of Jefferson: Monticello Edition, Vol. 6 (Washington, D.C.: Thomas Jefferson Memorial Association, 1904-1905), P.254 Original Sources, accessed April 25, 2018, http://www.originalsources.com/Document.aspx?DocID=CYWPIMN4BW2EDY9.

MLA: Jefferson, Thomas. "To John Churchman." Writings of Thomas Jefferson, Volume 6, in Thomas Jefferson, the Writings of Jefferson: Monticello Edition, Vol. 6 (Washington, D.C.: Thomas Jefferson Memorial Association, 1904-1905), P.254, Original Sources. 25 Apr. 2018. www.originalsources.com/Document.aspx?DocID=CYWPIMN4BW2EDY9.

Harvard: Jefferson, T, 'To John Churchman.' in Writings of Thomas Jefferson, Volume 6. cited in , Thomas Jefferson, the Writings of Jefferson: Monticello Edition, Vol. 6 (Washington, D.C.: Thomas Jefferson Memorial Association, 1904-1905), P.254. Original Sources, retrieved 25 April 2018, from http://www.originalsources.com/Document.aspx?DocID=CYWPIMN4BW2EDY9.