1857-1858 FIRST EUROPEAN TOUR CONTINUED--LEVERRIER AND THE PARIS OBSERVATORY--ROME--HARRIET HOSMER--OBSERVATORY OF THE COLLEGIO ROMANO--SECCHI At this time, the feeling between astronomers of Great Britain and those of the United States was not very cordial.

It was the time when Adams and Leverrier were contending to which of them belonged the honor of the discovery of the planet Neptune, and each side had its strong partisans.
Among Miss Mitchell's papers we find the following with reference to this subject: "...

Adams, a graduate of Cambridge, made the calculations which showed how an unseen body must exist whose influences were felt by Uranus.

It was a problem of great difficulty, for he had some half-dozen quantities touching Uranus which were not accurately known, and as many wholly unknown concerning the unseen planet.

We think it a difficult question which involves three or four unknown quantities with too few circumstances, but this problem involved twelve or thirteen, so that x, y, z reached pretty high up into the alphabet.