I am afraid that the English microscope turned out to be by no means worth the money and trouble you bestowed upon it. But the glory of such an optical Sadowa should count for something! I wish that you would get your Jena man to supply me with one of his best objectives if the price is not ruinous—I should like to compare it with my 1/12 inch of Ross. [In this connection it may be noted that he himself invented a combination microscope for laboratory use, still made by Crouch the optician. (See "Journal of Queckett Micr. Club" volume 5 page 144.)]
All our children but Jessie have the whooping-cough—Pertussis—I don't know your German name for it. It is distressing enough for them, but, I think, still worse for their mother. However, there are no serious symptoms, and I hope the change of air will set them right.
They all join with me in best wishes and regrets that you are not coming. Won't you change your mind? We start on July 31st.
Ever yours faithfully,
T.H. Huxley.
[The summer holiday of 1871 was spent at St. Andrews, a place rather laborious of approach at that time, with all the impedimenta of a large and young family, but chosen on account of its nearness to Edinburgh, where the British Association met that year. I well remember the night journey of some ten or eleven hours, the freshness of the early morning at Edinburgh, the hasty excursion with my father up the hill from the station as far as the old High Street. The return journey, however, was made easier by the kindness of Dr. Matthews Duncan, who put up the whole family for a night, so as to break the journey.
We stayed at Castlemount, now belonging to Miss Paton, just opposite the ruined castle. Among other visitors to St. Andrews known to my father were Professors Tait and Crum Brown, who inveigled him into making trial of the "Royal and Ancient" game, which then, as now, was the staple resource of the famous little city. I have a vivid recollection of his being hopelessly bunkered three or four holes from home, and can testify that he bore the moral strain with more than usual calm as compared with the generality of golfers. Indeed, despite his naturally quick temper and his four years of naval service at a time when, perhaps, the traditions of a former generation had not wholly died out, he had a special aversion to the use of expletives; and the occasional appearance of a strong word in his letters must be put down to a simply literary use which he would have studiously avoided in conversation. A curious physical result followed the vigour with which he threw himself into the unwonted recreation. For the last twenty years his only physical exercise had been walking, and now his arms went black and blue under the muscular strain, as if they had been bruised.
But the holiday was by no means spent entirely in recreation. One week was devoted to the British Association; another to the examination of some interesting fossils at Elgin; while the last three weeks were occupied in writing two long articles, "Mr. Darwin's Critics," and the address entitled "Administrative Nihilism" referred to above, as well as a review of Dana's "Crinoids." The former, which appeared in the "Contemporary Review" for November ("Collected Essays" 2 120-187) was a review of (1) "Contributions to the Theory of Natural Selection," by A.R. Wallace, (2) "The Genesis of Species," by St. George Mivart, F.R.S., and (3) an article in the "Quarterly" for July 1871, on Darwin's "Descent of Man.">[
"I am Darwin's bull-dog," [he once said, and the "Quarterly Reviewer's" treatment of Darwin,] "alike unjust and unbecoming," [provoked him into immediate action.] "I am about sending you," [he writes to Haeckel on November 2,] "a little review of some of Darwin's critics. The dogs have been barking at his heels too much of late." [Apart from this stricture, however, he notes the] "happy change" [which] "has come over Mr. Darwin's critics. The mixture of ignorance and insolence which at first characterised a large proportion of the attacks with which he was assailed, is no longer the sad distinction of anti-Darwinian criticism." [Notes too] "that, in a dozen years, the 'Origin of Species' has worked as complete a revolution in biological science as the 'Principia' did in astronomy—and it has done so, because, in the words of Helmholtz, it contains 'an essentially new creative thought.'"
[The essay is particularly interesting as giving evidence of his skill and knowledge in dealing with psychology, as against the "Quarterly Reviewer," and even with such an unlikely subject as scholastic metaphysics, so that, by an odd turn of events, he appeared in the novel character of a defender of Catholic orthodoxy against an attempt from within that Church to prove that its teachings have in reality always been in harmony with the requirements of modern science. For Mr. Mivart, while twitting the generality of men of science with their ignorance of the real doctrines of his church, gave a reference to the Jesuit theologian Suarez, the latest great representative of scholasticism, as following St. Augustine in asserting, not direct, but derivative creation, that is to say, evolution from primordial matter endued with certain powers. Startled by this statement, Huxley investigated the works of the learned Jesuit, and found not only that Mr. Mivart's reference to the Metaphysical Disputations was not to the point, but that in the "Tractatus de opere sex Dierum," Suarez expressly and emphatically rejects this doctrine and reprehends Augustine for asserting it.]