to Mr. Evarts.
Lisbon, February 5, 1878. (Received February 25.)
Sir: Referring to my Kb. 177, of the 27th of December last, I have the honor to inform you that Lieut. Commander F. M. Green reported to me on the 2d instant that he had satisfactorily completed the work of measuring the difference of longitude between this point and Madeira, and desired me to express to the Portuguese Government, and especially to the officers of the Royal Observatory, his appreciation of the very courteous manner in which he has been aided in every possible way in his work at this place. This I did on the 4th instant, and I now forward copies of Captain Green’s note to me, in which he made this request, and of my note to Mr. Corvo, based thereon.
No pains were spared by the Portuguese authorities to lessen the labors of Captain Green and his officers, and he states that the success of his work is due in a great measure to this fact.
The Guard sailed from Lisbon for Madeira on Sunday the 3d instant, at about 1 p.m., and after a few days’ stay there will proceed as speedily as possible to St. Vincent, Cape Verdes, where Captain Green and his officers will begin the work of measuring the difference of longitude between that place and some given point on the northeastern coast of South America.
I have, &c.,