MON CHER AGASS,* (* An affectionate abbreviation which Sir Philip often used for him.)

I have this morning received your handsome and welcome present of the third volume of your great undertaking, and this reminds me how remiss I have been in not writing to you sooner. In fact, I have had nothing worth writing about, and I know your time is too valuable to be intrenched upon by letters of mere gossip. I have not of course had time to peruse any portion of the monograph, but I have turned over the pages and seen quite enough to sharpen my appetite for the glorious scientific feast you have so liberally provided. And now that the weight is off your mind, I hope shortly to hear that you are about to fulfill this year the promise you made of returning to England for a good long visit, only postponed by circumstances you could not have foreseen. Now that you have your son as the sharer of your labors, you will be able to leave him in charge during your absence, and so divest your mind of all care and anxiety with reference to matters over the water. Here we are all fighting most furiously about Celts and flint implements, struggle for life, natural selection, the age of the world, races of men, biblical dates, apes, and gorillas, etc., and the last duel has been between Owen and Huxley on the anatomical distinction of the pithecoid brain compared with that of man. Theological controversy has also been rife, stirred up by the "Essays and Reviews," of which you have no doubt heard much. For myself, I have been busy preparing, in conjunction with Huxley, another decade of fossil fishes, all from the old red of Scotland. . .Enniskillen is quite well. He is now at Lyme Regis. . .

At about this time the Copley Medal was awarded to Agassiz, a distinction which was the subject of cordial congratulation from his English friends.

FROM SIR RODERICK MURCHISON.

BELGRAVE SQUARE, March, 1862.

MY DEAR AGASSIZ,

Your letter of the 14th February was a great surprise to me. I blamed myself for not writing you sooner than I did on the event which I had long been anxious to see realized; but I took it for granted that you had long before received the official announcement from the foreign secretary that you were, at the last anniversary of the Royal Society, the recipient of the highest honor which our body can bestow, whether on a foreigner or a native. . .On going to the Royal Society to-day I found that the President and Secretaries were much surprised that you had never answered the official letter sent to you on the 1st or 2nd December by the Foreign Secretary, Professor Muller, of Cambridge. He wrote to announce the award, and told you the Copley Medal was in his safe keeping till you wrote to say what you wished to have done with it. I have now recommended him to transmit it officially to you through the United States Minister, Mr. Adams. In these times of irritation, everything which soothes and calms down angry feelings ought to be resorted to; and I hope it may be publicly known that when our newspapers were reciprocating all sorts of rudenesses, the men of science of England thought of nothing but honoring a beloved and eminent savant of America.

I thank you for your clear and manly view of the North and South, which I shall show to all our mutual friends. Egerton, who is now here, was delighted to hear of you, as well as Huxley, Lyell, and many others. . .

In a paper just read to the Geological Society Professor Ramsay has made a stronger demand on the powers of ice than you ever did. He imagines that every Swiss lake north and south (Geneva, Neuchatel, Como, etc.) has been scooped out, and the depressions excavated by the abrading action of the glaciers.

FROM SIR PHILIP DE GREY EGERTON.