This was due to the introduction of the so-called aseptic theory so widely prevalent to-day, of which the chief prophet in 1885 was Professor von Bergmann of Berlin. Into the relative merits of systems, on which the learned disagree, it is absurd for laymen to enter; nor is it necessary to make such comparisons in order to appreciate the example of Lister's life. The new school believe that they have gained by the abandonment of carbolic and other antiseptics which may irritate a wound and by trusting to the agency of heat for killing all germs. But Lister himself took enormous pains to keep his antiseptic as remote as possible from the tissues to whose vitality he trusted, and went half-way to meet the aseptic doctrine. If he retained a belief in the need for carbolic and distrusted the elaborate ritual of the modern hospital, with its boiling of everybody and everything connected with an operation, it was not either from blindness or from pettiness of mind. As in the case of abandoning the spray, it was his love of simplicity which influenced him. If the detailed precautions of the complete aseptic system are found practicable and beneficial in a hospital, they are difficult to realize for a country surgeon who has to work in a humbler way, and Lister wished his procedure to be within reach of every practitioner who needed it.
One more point must be considered before pronouncing Listerism to be superseded. In time of war there are occasions when necessity dictates the treatment to be followed. Wounded men, picked up on the field of battle some hours after they were hit, are not fit subjects for a method that needs a clear field of operation. It is then too late for aseptic precautions, as the wound may already be teeming with bacteria. Only the prompt use of carbolic can stay the ravages of putrefaction; and Lister's method, so often disparaged, must have saved the lives of thousands during the late War.
In any case there is much common ground between the two schools: each can learn from the other, and those professors of asepticism who have acknowledged their debt to Lister have been wiser than those who have made contention their aim. This was never the spirit in which he approached scientific problems.
An earlier controversy, in which his name was involved, was that which raged round the practice of vivisection. Here Lister had practically the whole of his profession behind him when he boldly supported the claims of science to have benefited humanity by the experiments conducted on animals and to have done so with a minimum of suffering to the latter. And it was well that science had a champion whose reputation for gentleness and moderation was so well established. Queen Victoria herself showed a lively interest in this fiercely-debated question; and in 1871, when Lister was appealed to by Sir Henry Ponsonby, her private secretary, to satisfy her doubts on the subject, he wrote an admirable reply, calm in tone and lucid in statement, in which he showed how unfounded were the charges brought against his profession.
In 1892 his professional career was drawing to a close. In that year he received the heartiest recognition that France could give to his work, when he went there officially to represent the Royal Society at the Pasteur celebration. A great gathering of scientists and others, presided over by President Carnot, came together at the Sorbonne to honour Pasteur's seventieth birthday. It was a dramatic scene such as our neighbours love, when the two illustrious fellow workers embraced one another in public, and the audience rose to the occasion. To be acclaimed with Pasteur was to Lister a crowning honour; but a year later fortune dealt him a blow from which he never recovered. His wife, his constant companion and helper, was taken ill suddenly at Rapallo on the Italian Riviera, and died in a few days; and Lister's life was sadly changed.
He was still considerably before the public for another decade. He did much useful work for the Royal Society, of which he became Foreign Secretary in 1893 and President from 1895 to 1900. He visited Canada and South Africa, received the freedom of Edinburgh in 1898 and of London in 1907, and in 1897 he received the special honour of a peerage, the only one yet conferred on a medical man. He took an active interest in the discoveries of Koch and Metchnikoff, preserving to an advanced age the capacity for accepting new ideas. He was largely instrumental in founding the Institute of Preventive Medicine now established at Chelsea and called by his name. But his work as a surgeon was complete before death separated him from his truest helper. In 1903 his strength began to fail, and for the last nine years of his life, at London or at Walmer, he was shut off from general society and lived the life of an invalid.
william morris
From the painting by G. F. Watts in the National Portrait Gallery
In 1912 he passed away by almost imperceptible degrees, in his home by the sea, and by his own request was buried in the quiet cemetery of West Hampstead where his wife lay. A public service was held in Westminster Abbey, and a portrait medallion there preserves the memory of his features. The patient toil, the even temper, the noble purpose which inspired his life, had achieved their goal—he was a national hero as truly as any statesman or soldier of his generation; and if, according to his nature he wished his body to lie in a humble grave, he deserved full well to have his name preserved and honoured in our most sacred national shrine.