Concerning his father, who was “one of the masters in a large semi-public school” (the father of Herbert Spencer, it will be remembered, was also a schoolmaster), Huxley has little to say in the slight autobiographical sketch reprinted as an introduction to the first volume of the Collected Essays. On that side, he tells us, he could find hardly any trace in himself, except a certain faculty for drawing, and a certain hotness of temper. “Physically and mentally,” he was the son of his mother, “a slender brunette, of an emotional and energetic temperament.” His school training was brief and profitless; his tastes were mechanical, and but for lack of means, he would have started life in the same profession which Herbert Spencer followed till he forsook Messrs. Fox’s office for journalism. So, with a certain shrinking from anatomical work, Huxley studied medicine for a time under a relative, and in his seventeenth year entered the Charing Cross Hospital School as a student. In those days there was no instruction in physics, and only in such branch of chemistry as dealt with the nature of drugs. Non multa, sed multum, and what was lacking in breadth was, perhaps, gained in thoroughness. Huxley had as excellent a teacher in Wharton Jones as the latter had a promising pupil in Huxley, and in working with the microscope, the evidence of that came in his discovery of a certain root-sheath in the hair, which has since then been known as “Huxley’s layer.”

Up to the time of his studentship, he had been left, intellectually, altogether to his own devices. He tells us that he was a voracious and omnivorous reader, “a dreamer and speculator of the first water, well endowed with that splendid courage in attacking any and every subject which is the blessed compensation of youth and inexperience.” Among the books and essays that impressed him were Guizot’s History of Civilization; and Sir William Hamilton’s essay On the Philosophy of the Unconditioned which he accidentally came upon in an odd volume of the Edinburgh Review. This, he adds, was “devoured with avidity,” and it stamped upon his mind the strong conviction “that on even the most solemn and important of questions, men are apt to take cunning phrases for answers; and that the limitation of our faculties, in a great number of cases, renders real answers to such questions, not merely actually impossible, but theoretically inconceivable.” Thus, before he was out of his teens, the philosophy that ruled his life-teaching was taking definite shape.

In 1845, he won his M. B. London with honours in anatomy and physiology, and after a few months’ practice at the East End, applied, at the instance of his senior fellow-student, Mr. (afterwards Sir) Joseph Fayrer, for an appointment in the medical service of the Navy. At the end of two months he was fortunate enough to be entered on the books of Nelson’s old ship, the Victory, for duty at Haslar Hospital. His official chief was the famous Arctic Explorer, Sir John Richardson, through whose recommendation he was appointed, seven months later, assistant surgeon of the Rattlesnake. That ship, commanded by Captain Owen Stanley, was commissioned to survey the intricate passage within the Barrier Reef skirting the eastern shores of Australia, and to explore the sea lying between the northern end of that reef and New Guinea. It was the best apprenticeship to what was eventually the work of Huxley’s life—the solution of biological problems and the indication of their far-reaching significance. Darwin and Hooker had passed through a like marine curriculum. The former served as naturalist on board the Beagle when she sailed on her voyage round the world in 1831; the latter as assistant-surgeon on board the Erebus on her Antarctic Expedition in 1839. Fortune was to bring the three shoulder to shoulder when the battle against the theory of the immutability of species was fought.

During his four-years’ absence Huxley, in whom the biologist dominated the doctor, made observations on the various marine animals collected. These he sent home to the Linnæan Society in vain hope of acceptance. A more elaborate paper to the Royal Society, communicated through the Bishop of Norwich (author of a book on birds, and father of Dean Stanley), secured the coveted honour of publication, and on Huxley’s return in 1850 a “huge packet of separate copies” awaited him. It dealt with the anatomy and affinities of the Medusæ, and the original research which it evidenced justified his election in 1851 to the fellowship of the society whose presidential chair he was in after years to adorn. He would seem to have won the blue ribbon of science per saltum. Probably, so far as their biological value is concerned, nothing that he did subsequently has surpassed his contributions to scientific literature at that period; but if his services to knowledge had been limited to the class of work which they represent, he would have remained only a distinguished specialist. Further recognition of his well-won position came in the award of the society’s royal medal. But fellowships and medals keep no wolf from the door, and Huxley was a poor man. After vain attempts to obtain, first, a professorship of physiology in England, and then a chair of natural history at Toronto (Tyndall was at the same time an unsuccessful candidate for the chair of physics in the same university), a settled position was secured by Sir Henry de la Beche’s offer of the professorship of palæontology and of the lectureship on natural history in the Royal School of Mines, vacated by Edward Forbes. That was in 1854. Between that date and the time of his return Huxley had contributed a number of valuable papers on the structure of the invertebrates, and on histology, or the science of tissues. But these, while adding to his established qualifications for a scientific appointment, demand no detailed reference here. With both chairs there was united the curatorship of the fossil collections in the Museum of Practical Geology, and these, with the inspectorship of salmon fisheries, which office he accepted in 1881, complete the list of Huxley’s more important public appointments. He surrendered them all in 1885, having reached the age at which, as he jocosely remarked to the writer, “Every scientific man ought to be poleaxed.” Perhaps he dreaded the conservatism of attitude, the non-receptivity to new ideas, which often accompany old age. But for himself such fears were needless. He was never of robust constitution; in addition to the lasting effects of an illness in boyhood, Carlyle’s “accursed Hag,” dyspepsia, which troubled both Darwin and Bates for the rest of their lives after their return from abroad, troubled him. Therefore, considerations of health mainly prompted the surrender of his varied official responsibilities, the loyal discharge of which met with becoming recognition in the grant of a pension. This secured a modest competence in the evening of life to one who had never been wealthy, and who had never coveted wealth. To Huxley may fitly be applied what Faraday said of himself, that he had “no time to make money.” And yet, to his abiding discredit, the present editor of Punch allowed his theological animus, which had already been shown in abortive attempts in the pages of that “facetious” journal to appraise a Roman Catholic biologist at the expense of Huxley, to further degrade itself by affixing the letters “L. S. D.” to his name in a character-sketch.

His public life may be said to date from 1854. The duties which he then undertook included the delivery of a course of lectures to working men every alternate year. Some of these—models of their kind—have been reissued in the Collected Essays. Among the most notable are those on Our Knowledge of the Causes of the Phenomena of Organic Nature. At the outset of his public career lecturing was as distasteful to him as in earlier years the trouble of writing was detestable. But mother wit and “needs must” trained him in a short time to win the ear of an audience. One evening in 1852 he made his début at the Royal Institution, and the next day he received a letter charging him with every possible fault that a lecturer could commit—ungraceful stoop, awkwardness in use of hands, mumbling of words, or dropping them down the shirt front. The lesson was timely, and its effect salutary. Huxley was fond of telling this story, and it is worth recording—if but as encouragement to stammerers who have something to say—at what price he “bought this freedom” which held an audience spellbound. How he thus held it in later years they will remember who in the packed theatre of the Royal Institution listened on the evening of Friday, 9th of April, 1880, to his lecture On the Coming of Age of the Origin of Species.

In 1856 Huxley visited the glaciers of the Alps with Tyndall, the result appearing in their joint authorship of a paper on Glacial Phenomena in the Philosophical Transactions of the following year. But this was a rare interlude. What time could be wrested from daily routine was given to the study of invertebrate and vertebrate morphology, palæontology, and ethnology, familiarity with which was no mean equipment for the conflict soon to rage round these seemingly pacific materials when their deep import was declared. The outcome of such varied industry is apparent to the student of scientific memoirs. But a recital of the titles of papers contributed to these, as e. g., On Ceratodus, Hyperodapedon Gordoni, Hypsilophodon, Telerpeton, and so forth, will not here tend to edification. The original and elaborate investigations which they embody have had recognition in the degrees and medals which decorated the illustrious author. But it is not by these that Huxley’s renown as one of the most richly-endowed and widely-cultured personalities of the Victorian era will endure. They might sink into the oblivion which buries most purely technical work without in any way affecting that foremost place which he fills in the ranks of philosophical biologists both as clear-headed thinker and luminous interpreter.

In this high function the publication of the Origin of Species gave him his opportunity. That was in 1859. As with Hooker and Bates, his experiences as a traveller, and, more than this, his penetrating inquiry into significances and relations, prepared his mind for acceptance of the theory of descent with modification of living forms from one stock. Hence the mutability, as against the old theory of the fixity, of species.

In the chapter On the Reception of the Origin of Species, which Huxley contributed to Darwin’s Life and Letters, he gives an interesting account of his attitude toward that burning question. He says—

“I think that I must have read the Vestiges (see p. [119]) before I left England in 1846, but if I did the book made very little impression upon me, and I was not brought into serious contact with the ‘species’ question until after 1850. At that time I had long done with the Pentateuchal cosmogony which had been impressed upon my childish understanding as Divine truth with all the authority of parents and instructors, and from which it had cost me many a struggle to get free. But my mind was unbiassed in respect of any doctrine which presented itself if it professed to be based on purely philosophical and scientific reasoning.... I had not then and I have not now the smallest a priori objection to raise to the account of the creation of animals and plants given in Paradise Lost, in which Milton so vividly embodies the natural sense of Genesis. Far be it from me to say that it is untrue because it is impossible. I confine myself to what must be regarded as a modest and reasonable request for some particle of evidence that the existing species of animals and plants did originate in that way as a condition of my belief in a statement which appears to me to be highly improbable....

“And by way of being perfectly fair, I had exactly the same answer to give to the evolutionists of 1851-58. Within the ranks of the biologists of that time I met with nobody, except Dr. Grant, of University College, who had a word to say for Evolution, and his advocacy was not calculated to advance the cause. Outside these ranks the only person known to me whose knowledge and capacity compelled respect, and who was at the same time a thoroughgoing evolutionist, was Mr. Herbert Spencer, whose acquaintance I made, I think, in 1852, and then entered into the bonds of a friendship which I am happy to think has known no interruption. Many and prolonged were the battles we fought on this topic. But even my friend’s rare dialectic skill and copiousness of apt illustration could not drive me from my agnostic position. I took my stand upon two grounds: firstly, that up to that time the evidence in favour of transmutation was wholly insufficient; and secondly, that no suggestion respecting the causes of the transmutation assumed which had been made was in any way adequate to explain the phenomena. Looking back at the state of knowledge at that time, I really do not see that any other conclusion was justifiable.