In summer 1867, Lister’s sister, Isabella Pim, discovered a breast tumor and traveled to Glasgow after surgeons in London and Edinburgh advised against operating, fearing the large wound would become fatally infected. Breast cancer surgery was extraordinarily dangerous; even with anesthesia allowing more extensive tissue removal, postoperative sepsis killed many patients. Isabella trusted her brother’s antiseptic methods. After practicing on a corpse and consulting James Syme, who agreed carbolic acid might reduce risk, Lister performed a mastectomy on Isabella on June 16 in his own home to minimize exposure. Using carbolic-soaked instruments and multilayered antiseptic dressings, he removed the breast, chest muscles, and lymph nodes. The wound healed without suppuration, and Isabella lived three more years before the cancer returned in her liver.

Lister presented his findings to the British Medical Association on August 9, 1867, receiving initial positive responses from Syme and The Lancet. Controversy erupted when a letter signed “Chirurgicus” appeared in the Edinburgh Daily Review on September 21, claiming French physician Jules Lemaire had used carbolic acid in surgery before Lister. The author was James Y. Simpson, the influential chloroform discoverer, who distributed the letter widely. The Lancet editor James G. Wakley published it with a note implying Lister had merely popularized a Continental practice. Simpson sought to protect his acupressure technique, which Lister’s system threatened.

Lister replied that he had never claimed to discover carbolic acid; his novelty lay in a systematic method based on germ theory. After obtaining Lemaire’s book, he found it unscientific and lacking guiding principles. Simpson attacked again, this time under his own name, invoking Professor William Pirrie’s acupressure successes. Lister sent a brief final reply, stating his evidence would speak for itself. Pirrie then published an article himself praising carbolic acid’s potential, saying nothing about acupressure.

Though publicly composed, Lister felt wounded privately, writing to his father, Joseph Jackson, about his distress. He said that fame was not his goal, but that his work might quietly improve the treatment of disease. Other critics also emerged, as Frederick W. Ricketts and former colleague James Morton dismissed Lister’s approach as “outdated.” The medical establishment struggled with the underlying germ theory, which Morton called fearmongering. At the same time, practical problems compounded theoretical resistance: Lister’s methods were complex, constantly evolving, and required precision many surgeons could not or would not provide. London surgeon James Paget’s prominent rejection, after claiming careful application yielded poor results, proved particularly damaging. The Lancet speculated that London’s failures stemmed from careless implementation, but winning widespread acceptance became increasingly difficult.

In spring 1869, James Syme suffered a paralytic stroke at his Edinburgh clinic, witnessed by his assistant Thomas Annandale. Though Syme partially recovered, his wife Jemima’s recent death and his declining health prompted him to resign his professorship. Supported by 127 medical students who praised his antiseptic work, Lister was elected to the chair of clinical surgery at the University of Edinburgh on August 18, 1869.

Criticism continued despite this success. One surgeon reported carbolic acid poisoning in a patient, while another cited misleading hospital-wide mortality statistics to frame carbolic acid as the culprit. Some attributed Lister’s results to general hygiene improvements.  Lister refuted these claims, arguing that improvements occurred after his system showed results. At the 1869 British Medical Association meeting, Thomas Nunneley delivered a scathing critique, calling germ theory “unsupported fancies” (193).

Later that year, personal strategy struck Lister when his father, Joseph Jackson, died on October 24, 1869, shortly after Lister rushed to his bedside. Deeply grieved, Lister delivered his Edinburgh inaugural lecture two weeks later, honoring the ailing Syme. On June 26, 1870, Syme died, leaving Lister without “two father figures within a year” (195).

Lister focused much of his efforts on training the next generation. He delivered demonstration-based lectures, while commanding his classroom with strict discipline, personally collecting admission tickets and reprimanding careless dressers. He created devoted followers—the “Listerians”—who spread his methods.

He continued refining his system, seeking absorbable ligature materials to replace infection-prone traditional methods. After experiments showed carbolized silk was imperfect, he developed catgut ligatures. Tests on animals and humans proved successful, though he had to adjust solutions to prevent catgut from absorbing too quickly—research that spanned his entire career. Skeptics viewed these modifications as admissions of failure.

Support grew on the Continent, particularly after successful use in the Franco-Prussian War. British surgeons Thomas Keith and E. R. Bickersteth defended Lister. He also countered misleading statistics by presenting data from his own wards showing dramatic mortality decreases.

The chapter concludes with newly qualified surgeon John Rudd Leeson visiting Lister’s home and observing test tubes filled with various liquids (Lister’s bacteriological experiments) without yet understanding their medical significance or connection to his microscope work.

On September 4, 1871, Lister was summoned to Balmoral Castle to treat Queen Victoria’s dangerous armpit abscess. He brought his new carbolic spray, designed to sterilize air based on John Tyndall’s research on airborne particles. The cumbersome apparatus, nicknamed the “donkey engine,” required assistants to operate. During the procedure, royal physician William Jenner worked the spray but accidentally directed carbolic mist into Victoria’s face. When pus formed the next day, Lister improvised the first surgical drainage tube using rubber tubing from the spray apparatus. The drain succeeded, Victoria recovered fully, and Lister’s system received royal endorsement. At the same time, the long dispute with James Y. Simpson ended with Simpson’s death from heart disease.

Louis Pasteur learned about Lister’s work and initiated a respectful correspondence with Lister. Lister’s fame grew as London hospitals began reporting successful trials, though full acceptance was slowed by resistance to germ theory. A Lancet correspondent observed that practical English surgeons adopted scientific doctrine more slowly than their German or Scottish counterparts. However, patients quickly recognized the system’s benefits. Lister’s methods were celebrated during an 1875 European tour, but American hospitals remained deeply skeptical, with some banning his techniques.

In 1876, Lister accepted an invitation to the International Medical Congress in Philadelphia.. At the September 4 opening, speakers denounced Lister, culminating in Frank Hamilton’s reproach and Gross’s final rebuke declaring American surgeons placed no faith in the system. Undeterred, Lister delivered a two-and-a-half-hour address on the second day, grounding his system in germ theory, but still faced continued hostility.

Lister embarked on a transcontinental lecture tour, winning converts in several cities. In Chicago, he was hosted by a former Glasgow mill worker whose design career he had helped secure. In New York, surgeon William Van Buren invited him to demonstrate his techniques at Charity Hospital on Blackwell’s Island before more than 100 students. In Boston, Lister met Henry J. Bigelow, who had previously banned his methods at Massachusetts General Hospital. Impressed, Bigelow invited Lister to speak at Harvard, then publicly announced his conversion. Massachusetts General then became America’s first hospital to officially adopt Lister’s antiseptic system.

In February 1877, King’s College London approached Lister about filling a professorship. However, Lister stipulated he would accept only if allowed to reform clinical teaching methods. When his Edinburgh students presented a plea for him to stay and his criticisms of London teaching were published, King’s appointed John Wood instead. Lister’s supporters intervened, creating a second chair for him. After presenting 13 conditions in May, which were accepted, Lister moved to London in September 1877, making a final visit to the now-transformed Royal Infirmary.

In December 1892, Joseph Lister traveled to Paris for Louis Pasteur’s 70th birthday celebration at the Sorbonne. Lister delivered an address crediting Pasteur with transforming surgery from a hazardous lottery into a safe science and as the leader who had lifted medicine’s “dark curtain” (228). When Pasteur embraced Lister onstage, it symbolized the brotherhood of science serving humanity. They would never meet again.

Lister’s later years brought numerous honors: appointments as Queen Victoria’s personal surgeon, a baronetcy, a peerage as Lord Lister of Lyme Regis, and the Order of Merit. Public awareness of germs created a market for carbolic acid products. In 1879, Dr. Joseph Joshua Lawrence invented Listerine after attending Lister’s Philadelphia lecture. Other products including carbolic soap and tooth powder were also inspired by Lister’s work. Robert Wood Johnson, also inspired by Lister’s lecture, founded Johnson & Johnson with his brothers to manufacture sterile surgical supplies.

Lister’s legacy was secured by the Listerians who spread his methods worldwide. Medical practice gradually shifted from antisepsis (germ-killing) to asepsis (germ-free environments), though Lister opposed this because he believed antisepsis remained necessary for surgery outside controlled hospitals. Ultimately, his work saved hospitals from abandonment due to infection.

Upon Lister’s death, his nephew preserved his correspondence, providing insight into his life. Lister died peacefully in February 1912, with unfinished papers on suppuration beside his bed. His pioneering work transformed surgery into a modern science, ensuring surgical outcomes depend on knowledge and diligence rather than chance, and opening new frontiers that have saved countless lives.