February 13, Wednesday evening, or rather one o’clock, Thursday.--Rose and breakfasted at eight, which is become my regular practice; started for Lambert’s at ten, where I worked incessantly till five P.M.; returned to my room; dressed; went to the City, where I dined, and about eight o’clock arrived at Ward’s, whose microscopical party this evening was given chiefly on my account. Some eight or more splendid microscopes were in active use when I arrived; and the greater portion of the chief microscopic people were there. I was introduced to Stokes, Solly, Powel, Bowerbank[70].... Also Mr. Quekett, whom I knew before, and several amateurs, such as Boott, Bennett, Bentham, Don, were present. It was a feast to me, you may be sure, and I acquired some useful knowledge, and saw some strange things: the infusoria in flint; queer fossil woods, which are all the rage here, and are extremely curious; fibrocellular tissue, the most beautiful thing you can imagine. One of the best of the microscopists, Mr. Bowerbank, gave me one or two curious microscopical objects, which he had mounted for himself, and made an appointment with me and another friend to meet him on Monday evening next, to examine his microscopes and curious objects more quietly and at large than could be done in a crowd, and to prepare some specimens for me. Mr. Reade, a gentleman who was invited, but was prevented from attending, was so kind as to send me a copy of his paper on the Infusoria and Scales of Fishes found in Flint, with proof impressions which are far superior to those in the “Annals of Natural History.” ...