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ROYAL INSTITUTION LECTURES.

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ROYAL INSTITUTION LECTURES. INHERITANCE." (Continued from our last.) The following is a continuation of the last lecture delivered at the Royal Institution of South Wales on the evening of Easter Monday, by Mr. Charles Higginson, M.A., of London Universitv and Owens College. Mr. C. H. Glascodine presided. The lecturer proceeded :— Before we pass to the inheritance of the finer qualities, let us look for a moment at the inheri tance of disease. We should know much more about this if the higher animals bad transparent body-walls, like some of the lower. Firstly, general nervousness seems to be transmitted; also somnambulism. Then a host of grave diseases, such as many kinds of sorofula, |PnU, elephantiasis, epilepsy, catalepsy. Endless mischief has come through the transmission of ese. Diseases of the teeth are probably largely here- aitary; so are various deficiencies in the organs of sense, such as deafness, shortsight, &c. The special disease of amaurosis, whose symptom is the perpetual seeing of spots by the eye, is hereditary. On the limi- tation of heredity by sex, we know too little there are almost certainly some such limitations, which in a few years we shall find out. We must mention the fact of atavism, which occurs when a feature absent in a near descendant reappears in a more remote descendant. It is easy for us to account for this if we consider that B, the son of A, grows like A in a certain feature to a very small extent; and then the growing cells find some obstacle to their normal growth, so that they make a slight divergence, and a slight divergence in the beginning means a large divergence in the end. C, the son of B, has his feature like A's and B's to that aforesaid small extent; the little accidental obstacle need not be found here, and the feature will be repro- duced on A's pattern. I might discuss atavism at as great length as Spencer does, but it would probablv not be well to push the subject here. Not only constitu- tional diseases but also induced diseases mav be in herited. Short sight, induced by over studv can doubtless be transmitted, as Germany gives us to un- derstand, and epilepsy induced upon some guinei-pig» was inherited constitutionally by their descendants! And now to fix our ideas a little I shall give two tables [illustrated by diagrams on the black board] showing the transmission of a malformation through several generations, in spite of marriages with people in whom those malformations were wholly absent. The first is of Gratio Kellia, of Malta, and is dye to Reaumur the second is of Esther L-, and is due to Dr. Strutliers. Kellia had six fingers and six toes on either side, Esther had only one sixth finger. In Kellia's case we see that in the first generation there was one malformation; in the second no less than seven. In Esther L.'s case we find that in the first generation there was one single malformation; in the second generation two double and one treble malfor- mation; in the third, one double and one quadruple. So that there seems not too much likelihood of such things extinguishing themselves. Let us proceed at once to hereditary talents. It is probable that the retriever inherits an acquired talent; and Mr. Lewes tells us of a puppy whose mother bad been taught the unnatural operation of begging, balanced on its shanks. This puppy, taken from its mother at six weeka old spontaneously took to begging for whatever he wanted, to get food, to be let out of the room, nay, once he was found in that position outside a rabbit-hutch, beg- ging for rabbits. In our present ignorance of the communicative power of animals I should not like to be quite sure that during the six weeks of maternal care the mother had not educated the pup on her newly-known lines. But I incline certainly to the hereditary hypothesis. And here we are as usual con- fronted with our old problem bow much is due to hereditary proper, and bow much to education ? We need not be so badly wrong as Dogberry, who said, God hath blessed you with a good name but to write and read comes by nature." But far wrong we must often be and we shall find ourselves often putting down acquired qualities to inheritance, and inherited qualities to acquisition. As a rule, the parent is for some time the idol of the child and imitation thence arises through the child's earnest conformity to its first ideal. Often imitation comes through less worthy causes, namely, the adventurous spirit of infancy, which seeks as much delight in forecast as old age does in retrospect, so that the infant makes a point of living his seventy years in fancy at once, by way of prepara- tlon to his living them in fact. Behold the child," says Wordsworth, "and his newborn blisses, a six- years darling of a pigmy size; see where, 'mid work of his own hand he lies, fretted with sallies of bis mothers kisses with light upon him from his father's eyes! See at his feet some little plan or chart, some fragment of his dream of human life, shaped by him- self with newly-learned art; a wedding or a festival, a mourning or a funeral! And this hath now his heart, and unto this he frames bis song; then will he fit his tongue to dialogs of business, love, or strife; but it will not be long ere this be thrown aside and with new joy and pride the little actor cons another part, filling from time to time the humorous stage, with all the persons, down to palsied age, that life brings with her in her equipage, as if his whole vacation were endless imitation." In gregarious sports of skill or strength," says Thomas Carlyle, the boy trains himself to co- operation, for war or peace, governor or as governed; the little maid, again, provident of her domestic des- tiny, takes with preverence to dolls." And chiefly we must remember Dickens,—above all men the lover of the imperfect, children and lunatics and simpletons,— when he describes Sam Weller's eon Tony. "That ere Tony, says bis grandfather, is the blessedest boy as ever I see in all my days! Of all the charminest infants as ever I heerd bellow, including them as was kivered over by the robin redbreasts arter they'd com- mitted 6ooicide with blackberries, there never wos any like that 'ere little Tony. He's always playin with a quart pot, that boy is To see him a sittin down on the door step pretendin' to drink out of it, and fetchin' a long breath arterwards, and smokin' a bit of firewood and sayin'' Now I'm granfather.' He wouldn't take a pint pot if you wos to make him a present on it, but be gets his quart, and then he says,'Now I'm gran- fathej.' I certify that this is by no means overdrawn, and that such childish efforts at imitating parents have the greatest effect in seconding and exaggerating those qualities which are really due to heredity. But apart from this we find in wrestlers and oarsmen more of the faculties transmitted than training can account for. Joseph Ewbank, Newcastle, wrestling champion 1847, with bis two eons, Noble, five times champion, and Joseph (a second-rate wrestler), Ivison and bis two Bona, John Tinian the wrestler, his brother and four sons, the four Tweddell brothers, and many other ex- amples point to the efficiency of heridity. Nor is it otherwise with oarsmen the eminent skiff-rower, John Hawks Clasper, besides having able brothers and an able cousin, had an eminent oarsman for father and two as uncles, besides other kinsmen who are fairly good, all being descended from his grandfather, a keel- man. And as in muscle so in mind. According to Francis Galton's calculations, given any eminent per- son, his father's chance of eminence is 1 to 6, his brother's 1 to 7, his eon's 1 to 4, bis grandfather's 1 to 25, his uncle's 1 to 40, bis nephew's 1 to 40, his grand- son's 1 to 29, his first cousin's 1 to 100. Owing to the force of circumstances in directing the pliant abilities of youth we must often find the inherited ability having its outlet another way. And we most also bear in mind that, often to perfect the individual, Nature robs the race. Genius is often childless, through its con- centration of powers. If we take Goethe, the one master-poet of many centuries whose scientific prepa- ration has been adequate, we find his father a stern pedantic truth-seeker, delighted to impart knowledge as to get it, and his mother a woman of such charm that she was looked upon as amply accountable for the magic of her son. Ncr has he forgotten his debts. I translate: My father gave my sturdy frame my earnest ways of living; My joyance from my mother came, and zeal for story-weaving. Since great-grandfather loved the girls, I'm troubled with the passion Great-grandmother liked silk and pearls, so I'm a man of fashion. The causes are so complex grown, that we cannot be sayintr What is there we can call his own, in any human being. Of Shakespeare's family we know too little; let us take Coleridge, as being a genius of almost equal magnitude. We find his son Hartley with the same gifts of imagi- nation as his father, and the same intemperate pro- clivities. His daughter Sara fitly edited his works for the most part; Judge Coleridge was his nephew; the Solicitor-General Coleridge his great-nephew, and four others have risen to eminence. Among the French, we may take PierreCorneille, the creator of the French drama, whose brother, Thomas, was eminent as a dra- matist, and whose nephew, Fontanelle, was a notorious man of science and man of society, possibly the father of D'Alembert, the great philosopher. I must men- tion Robert Bassett Browning, the distinguished painter, whose parentage is the most glorious of all men's, his mother being perhaps second among women, and hie father in the first forty of men. In science, we can take the Darwins, four of whom in the direct line have been Fellows of the Royal Society. The ingenious Brgsmus Darwin, author of the Botanic Gardens," himself springing from a lettered race," Robert Darwin, of Shrewsbury, physician; Charles Darwin, whose grave is in Westminster Abbey, and whose monument is the characteristic thought of the age; Francis Darwin, who has tested his father's theories ably on many lines. Many others of this family are distinguished. I mention the two Stephen- aons, the Herscbel family, and I mention the name of the greatest living Englishman, Herbert Spencer, whose father was the thorough, original, efficient lecturer at Derby, whose pupils tell me he accounts for his son. Take Francis Bacon, 'whose father, Sir Nicholas, Keeper of the Great Seal and Lord Chancellor, was very keen after science, and whose mother, Anne Cook, was a member of a most gifted family, and had great literary taste and was a fine classical scholar. His cousin was Robert Cecil, the eminent minister under Elizabeth and James; hie half-brother, Sir Nathaniel, was a splendid painter and an elder brother, Natha- niel, and an ailing brother, Anthony, showed pro- digious intelligence. His grandfather, Sir Anthony Cooke, and his four aunts are spoken of as uncommonly admirable people. I must also mention James and John Mill. Let uptake some statesmen. The dashing Disraeli was the son of a father eminent in literature, and very eminent in learning. Mirabeau's father was a soldier of extraordinary valour, and the author of L'ami des Hommes." His uncle, like his father, had a strong dash of genius; while his mothersup- plied him with what his father s family lacked, his splendid self-popularising faculties, his familiarity, which was one of the chief instruments of .his power. So we might proceed through page after page, finding heredity efficient in nearly all cases wo take up, but of course obliged now and then to say with the bu. mility of imperfect knowledge: Here is a cas? which we cannot see through let us not dogmatize about it, but look at it a little longer. Such a case is that of Sir Isaac Newton, whose ancestry and posterity saetn to be quite unworthy of him." However, the two Huttons, one a great mathematician, the other a very great geologist, were his fourth cousins, so that even. in this case, we have some sign of heridity. I always think Shelley is another instance of this his ancestors do not seem good enough for him. So these and countless other instances make u? perceive that hereditv is operative not only on plants and prizi cattle, but also on man, in feature, in build, and other obvious matters, and also in secret and subtle matters of organi- zation,—of muscle, nerve, brair. Possibly some may ^as *n been thoroughly known f ""Icenturies since Plato, who, in his republic, took the most drastic measures for providing his ideal Citizens with sound parents." I reply, Look at history." In the Middle Ages (to say nothing of ancient history, where blunders are proverbially evi- dent in such matters) we find the magnificent spectacle of a great spiritual power arisan, uniting the whole of Western Europe. The officers of this great Church were to be found in every village in every one of these countries. They were mediators between man ind nature, mediators between man and man, conductors of all the education in the countries, educators in literature and science and art, trainers of character, laden with endless rewards and punishments; the trainers of youth, the counsellors of manhood, and the consolers of age, solving for all the problems of life, the problem of death. Such officers were carefully picked out from the flower of all classes. But they were for- bidden to marry. So that humanity had this dreadful hindrance, from which, I believe, it has never recovared, that while ordinary and low-class men were allowed to bequeath their characteristics to posterity, the finest natures were expressly told off to celibacy. Nor is this the only bad blunder which the glorious Catholic Church has made in the matter. Not content with condemning the finest natures to celibacy, she did her best to root out the daring intellects. The Church knew perfectly well that knowledge is secondary to conduct; so by centuries of labour she had based conduct on an elaborate theological system, which was, in fact, a sur- vey of the universe. But that system had to be made before the intellect was ripe for taking a survey of the universe, and in consequence, when the intellect grew able to see more and more of the laws of nature, a conflict with the imperfectly based theological system was inevitable, unless the Popes should have the ad- mirable judgment and almost superhuman skill to incorporate with the theologic system the results of science as they came along. These the Popes had not, and I think none of us dares to say we should have had had we been they. Here was their dilemma then Shall we let these freethinkers, by overthrowing the public doctrines, bring disorder into the public con- duct? or, shall we sacrifice a little intellect to save a great deal of character ? The answer could be but one; and the revolting intellects were stamped out so far as possible. Ultimately there was failure, but tempora- rily a success so great, that if martyrdom had not been an advertisement of the most powerful order, society might have ceased to advance. And yet, much as I sympathise with the persecuting church, it is a matter of deepest regret that the representatives of Truth were crushed by the representatives of Order for the best life, if founded on Fiction, is incomparably in- ferior to the best life founded on Truth. That the finer natures should be made barren was bad enough; it is an additional horror that the robust intellects should be eradicated. So much for mediaeval blunders on the heredity principles, which systematically im- poverished Europe. Everyone has heard of the Rev. Mr. Malthus, who declared that population tends to increase faster than the means of subsistence, and if not checked preventively by prudence, will be checked curatively by disease and starvation. What is the consequence of preaching this perfectly true doctrine? Only the prudent heed it, and pass their prudence on to few children. The imprudent do not heed it, and pass their imprudence on to many. So that here the laws of nature are against humanity, and the more the few try to mend matters, the more the many will con- firm destitution. Thus, in all probability the Malthu- sian crusade is a mistake, and Malthus' disciples must try some other plan. I might mention other social matters which show that this heredity principle is not enough taken to heart. I will, however, mention only one. Wealth, which brings ease, brings lack of exercise, and therefore decay of powers. Hence our upper and upper-middle classes are degenerating. Our lower working class, on the other hand, has scarcely begun to rise. The upper working class and lower middle class are in physical, mental, and moral qualities the classes which we most wish to see multiplied. Yet these are the very classes which contract late marriages and pro- duce few children while the degenerate upper classes and the unregenerate lower working class own to no restriction in the matter. Hence our national improve- ment from generation to generation is unduly small. As the ordinary citizen thinks the foregoing thoughts, what will he feel inclined to do ? I think the sense of private responsibility will be much deepened in him. For he sees that every trick that he plays with his own constitution or that his wife plays with hers may be pernicious even unto the end of the world that every look, every word, every deed, every tone not only affects those of the present day with whom he comes in contact, but, through them, may reverberate through the unbounded sphere of the future; that therefore all sanity in feeling, in intellect, in will, in body, is to be diligently sought and zealously retained. In the fore- going leoture I have noticed first the political then the biological aspect of inheritance. I summarised the outcome of the Free-will controversy, and gave an out- line of the caste system as it is traced amongst the Jews, the Egyptians, and the English. I showed the gradual nature of the supplanting of hereditary trans- mission by the plan of open careers, not forgetting to show up some defects of the latter. Then I told how in plants and animals heredity had stood the mercan- tile test for centuries; I mentioned variation, and imputed it to change in environment, and drew par- ticular attention to emigrants and domesticated animals. I spoke of inherited diseases, and warned you that induced diseases could be transmitted, as in the case of epileptic guinea-pigs, though some kinds of mutilation, such as the clipping of lambs' tails, were not trans- mitted, though the operation had been done for centu- ries. I gave two instances of malformations descending from generation to generation, and then passed on to mental inheritance. I warned yoa against imputing too little to education, though the cases of foundlings like the great philosopher, D'Alembert, show what heredity alone can do. Having expounded atavism, I went into the family connexions of many noted litti- rateurs, scientists, and politicians; which bore out what we had observed in oarsmen and wrestlers Lastly, I drew attention to some terrible warnings which history had given us, lest we, like our forerun- ners and contemporaries, should think too liohtlv the facts of Inheritance. ot

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