Science-Teaching Fifty Years Ago—Huxley's Insistence on Reform—Science Primers—Physiography—Elementary Physiology—The Crayfish—Manuals of Anatomy—Modern Microscopical Methods—Practical Work in Biological Teaching—Invention of the Type System—Science in Medical Education—Science and Culture.

Less than half a century ago, there was practically no generally diffused knowledge of even the elements of science and practically no provision for teaching it. Medical students, in the course of their professional education, received some small instruction in botany, chemistry, and physiology; in the greater universities of England and the Continent there were not in all a dozen professorships of science apart from special branches of medicine; in the Scottish universities there were one or two dreamy chairs of "Natural and Civil History," the occupiers of which were supposed to dispense instruction in half a dozen sciences. There was no scientific teaching at the public schools; there were practically no books available for beginners in science, and even the idea of guides to laboratory work had not been invented. Huxley, addressing in 1854 a particularly select audience in St. Martin's Hall, London, spoke to them of the

"utter ignorance as to the simplest laws of their own animal life, which prevails among even the most highly educated persons in this country." "I am addressing," he said, "I imagine, an audience of cultivated persons; and yet I dare venture to assert that, with the exception of those of my hearers who may chance to have received a medical education, there is not one who could tell me what is the meaning and use of an act which he performs a score of times every minute, and whose suspension would involve his immediate death:—I mean the act of breathing—or who could state in precise terms why it is that a confined atmosphere is injurious to health."

The power to express the precise meaning of even a common physiological act is probably not yet possessed by all educated people: but no one can doubt that there is now a very generally diffused knowledge of and interest in the ordinary processes of living bodies. It is almost impossible for any of us to escape some amount of scientific education at school, at college, from lectures, or from books. Certainly those of us who have a natural inclination towards knowledge of that kind can hardly fail to have the opportunity of acquiring it. Every library abounds in elementary and advanced scientific books; every university and many schools have their lectures and laboratories for science, and there is scientific teaching involved in every educational curriculum. To attempt a complete account of how this radical change in the attitude of the world to science has come about would be to attempt to write the history of European civilisation in the last half-century. A thousand causes have been contributory; but among these causes two have been of extraordinary importance—an idea and a man. The idea is the conception of organic evolution, and the man was Huxley. The idea of evolution clothed the dead bones of anatomy with a fair and living flesh, and the new body left the dusty corners of museums to pervade the world, arousing the attention and interest of all. A large part of the prodigious mental activities of Huxley was devoted to compelling the world to take an interest in biological science. Had his life-work been no more than this side of it, it would have been of commanding importance. A mere enumeration of the modes in which he assisted in arousing attention to science among all classes would fill many pages. Almost before he was settled in London, in the lecture from which we quoted at the beginning of this chapter he urged the "educational value of the natural history sciences." In 1869 in a speech in Liverpool; in 1870 at University College, London; in 1874 as his Rectorial address in the University of Aberdeen; in 1876 at the opening ceremonial of the Johns Hopkins University at Baltimore; in the same year at South Kensington; in 1877 in a separate essay; in 1881 in an address to the International Medical Congress: at these different times and addressing different and important audiences he continued to urge the absolute necessity of a knowledge of nature. A well-known and eloquent passage from an address on "a liberal education" delivered to working men in 1868 contains the gist of his reiterated argument:

"Suppose it were perfectly certain that the life and fortune of every one of us would, one day or other, depend on his winning or losing a game of chess, don't you think that we should all consider it to be a primary duty to learn at least the names and the moves of the pieces; to have a notion of a gambit, and a keen eye for all the means of giving and getting out of check? Do you not think that we should look with a disapprobation amounting to scorn upon the father who allowed his son, or the state which allowed its members, to grow up without knowing a pawn from a knight?

Yet it is a very plain and elementary truth, that the life, the fortune, and the happiness of every one of us, and more or less of those who are connected with us, do depend upon our knowing something of the rules of a game infinitely more difficult and complicated than chess. It is a game which has been played for untold ages, every man and woman of us being one of the two players in a game of his or her own. The chess-board is the world, the pieces are the phenomena of the universe, the rules of the game are what we call the laws of nature. The player on the other side is hidden from us. We know that his play is always fair, just, and patient. But also we know, to our cost, that he never overlooks a mistake, or makes the smallest allowance for ignorance. To the man who plays well, the highest stakes are paid, with that sort of overflowing generosity with which the strong shows delight in strength, and one who plays ill is checkmated—without haste, but without remorse."

Huxley wished that this scientific education should begin at an early period of every child's training. In 1869 he wrote:

"Let every child be instructed in those general views of the phænomena of nature for which we have no exact English name. The nearest approximation to a name for what I mean which we possess is physical geography; the Germans have a better, 'Erdkunde' (earth knowledge or geology in its etymological sense), that is to say, a general knowledge of the earth, and what is on it and in it and about it. If anyone who has experience of the ways of young children will call to mind their questions, he will find that so far as they can be put in any scientific category, they will come under this head of 'Erdkunde.' The child asks, 'What is the moon, and why does it shine?' 'What is this water, and where does it run?' 'What is the wind?' 'What makes these waves in the sea?' 'Where does this animal live, and what is the use of that plant?' And if not snubbed and stunted by being told not to ask foolish questions, there is no limit to the intellectual craving of a young child; nor any bounds to the slow but solid accretion of knowledge and development of the thinking faculty in this way. To all such questions, answers which are necessarily incomplete, though true as far as they go, may be given by any teacher whose ideas represent real knowledge and not mere book learning: and a panoramic view of nature, accompanied by a strong infusion of the scientific habit of mind, may thus be placed within the reach of every child of nine or ten."

In 1880 Huxley, in association with Professor Roscoe, the chemist, and Professor Balfour Stewart, the physicist, took a great practical step toward securing the widest possible extension of elementary knowledge in science. They became general editors, for the English publishing house of Macmillan, of a series of "Science Primers." These were written in simple language, suitable for those with no preliminary knowledge of science, but were the work of the chief authorities in the leading branches of science. They were published at what was then the phenomenally cheap price of a shilling, and they sold in almost incredible numbers. Huxley himself wrote the introductory volume to this great series of tracts, taking for his subject the simplest and most natural phenomena of the world and the simplest chains of cause and effect that can be observed around us. The keynote of the little book was that knowledge of nature could be gained only by observation and experiment, and that for these the ordinary things in the world around us provided ample material. A few years later he wrote a more advanced volume on the same subject. He had now found an English name for the German Erdkunde, and his book on Physiography was simply an account of the leading things and forces of nature. A traveller set down in a foreign land will at once get into difficulties unless he has provided himself with a guide to the geography, the manners and customs, and the regulations of the country in which he finds himself. Huxley's aim was to provide a similar guide to nature; an outline of elementary knowledge of the world into which we all come as strangers. He wrote of force and energy, of the forms of water, of heat and cold, of the atmosphere, of winds and tides and weather, and of the main features of the lives of plants and animals. There was nothing new in what he wrote; he simply took from the chief sciences their leading principles and elementary facts, and set them forth in plain and simple language so that all could read and understand. The novelty was that an attempt should be made to bring these facts within the reach of all. The idea proved extremely infectious; in Europe and America, in many languages and by many authors, Huxley's main lines were followed, with the result that a new branch of education, and almost of science, was created.