The simplicity of character which belonged to her in early life was not lost when her reputation became established. The Royal Society, whose doors do not open at every knock, admitted her to membership, and, by their order, her bust was sculptured by Chantrey, and now adorns the hall of the Society in Somerset House. During the sittings for this purpose, a lady, a friend of the sculptor, him to introduce her to Mrs. Somerville. Chantrey consented, and made a dinner-party for the purpose. The two ladies were placed side by side at table, and the benevolent artist rejoiced to perceive, from the flow of talk, that they were mutually pleased. The next day, to his astonishment, his friend called on him in a state of great indignation, believing herself the victim of a practical joke. "How could you do so?" said she. "You knew that I did not want to know _that_ Mrs. Somerville; I wanted to know the astronomer: that lady talked of the theatre, the opera, and common things." The anecdote so often told of Laplace's compliment is literally true. Mrs. Somerville dined with this great geometer in Paris. "I write books," said Laplace, "that no one can read. Only two women have ever read the 'Mécanique Céleste'; both are Scotch women: Mrs. Greig and yourself." Upon the "Mécanique Céleste" Mrs. Somerville's greatest work is founded. "I simply translated Laplace's work," said she, "from algebra into common language." That is, she did what very few men and no other woman could do. It is of this work of Laplace that Bonaparte said, "I will give to it my first _six months_ of leisure." The student who reads it by the aid of Dr. Bowditch's notes has little idea of the difficulties to be met in the original work. Even Dr. Bowditch himself said, "I never come across one of Laplace's 'Thus it plainly appears,' without feeling sure that I have got hours of hard study before me, to fill up the chasm and show _how_ it plainly appears." This "translation into common language" was undertaken at the request of Lord Brougham, who desired a mathematical work suited to the "Library of Useful Knowledge." The manuscript was submitted to Sir John Herschel, who expressed himself "delighted with it,--that it was a book for posterity, but quite above the class for which Lord Brougham's course was intended." It was published at once, and became the text-book for the students of Cambridge. "The Connection of the Physical Sciences" and the "Physical Geography" are the later works of Mrs. Somerville. These volumes have probably been more read in our country than in Europe; for it is a common remark of the scientific writers of Great Britain, that their "readers are found in the United States." They contain vast collections of facts in all branches of Physical Science, connected together by the delicate web of Mrs. Somerville's own thought, showing an amount and variety of learning to be compared only to that of Humboldt.