Lives and Families

Assignor of One-Half

Jagadish Chandra Bose is remembered as the man who beat Marconi to radio and then refused, on principle, to patent anything. He did neither. What he did do was stranger and more human: he filed for patents in partnership with an American violinist's widow, let an Irish-born nun help write his books without naming her, and lived for years on a wife's household economies — and the two famous myths about him owe a great deal to people close to him.

The myth

The story as it is usually told in India, and increasingly elsewhere, runs like this. In 1895, in the Town Hall of Calcutta, a young physics professor named Jagadish Chandra Bose sent invisible electric waves through walls and across a room to ring a bell and fire a charge of gunpowder. That was wireless communication, two years before Guglielmo Marconi. Marconi patented it, commercialised it, and in 1909 shared a Nobel Prize for it. Bose, a man of principle, refused to patent anything, because he believed knowledge belonged to everyone. So the Italian got the money and the credit, and the Indian got forgotten, until a later generation of engineers rediscovered what he had done.

Almost every clause of that has a real fact underneath it. The demonstration happened. Bose did build detectors of great originality. He did turn down a lucrative commercial offer. But the shape of the story — the thief, the saint, the stolen invention — does not survive the documents. And the documents, it turns out, are mostly letters between the people closest to him.

The house on no salary

Bose came back from Cambridge and joined Presidency College, Calcutta, as officiating professor of physics in the mid-1880s. According to Patrick Geddes's biography, The Life and Work of Sir Jagadis C. Bose (1920), an Indian professor was then paid two-thirds of a European's salary, and because Bose's appointment was only "officiating", even that was halved. He was to receive one-third of the post's normal pay.

His protest was unusual. He did the work, and he refused to cash the monthly cheque. Geddes says he kept this up for three years, "with what privations accordingly need not now be entered into, save with a word of appreciation for his wife's brave acceptance of them." When the college finally made the appointment permanent and retrospective, the back pay came as a lump sum — and went straight to his father's creditors.

That is the second strand. Bose's father, Bhagaban Chandra Bose, had backed a string of industrial and agricultural ventures that failed, and had stood security for friends whose ventures failed too. Geddes records that the family land was sold, that Bose's mother gave up her own property, and that the creditors accepted seventy-five per cent as full settlement. Bose did not. Over roughly the next nine years, out of his own earnings, he paid the rest.

The wife who accepted those privations was Abala Das, the daughter of the Brahmo reformer Durga Mohan Das, whom he married in 1887. She had gone to Madras on a Bengal government scholarship to study medicine, an unusual path for a Bengali woman of the 1880s, and left, by the standard account, because of ill health; Geddes says she had been a medical student for four years. His biography, written while both were alive, credits her with "skilled and thrifty house-keeping" through "long-continued scanty means and strenuous saving to pay off family debts", and adds one sentence that nothing else in the record expands on: "their one great common sorrow — the loss of their only babe in early infancy". The child's name and dates do not appear in any source consulted here.

Geddes is a friendly witness, and the passage is written in the idiom of 1920. But the arithmetic is not sentimental. A professor on a third of his pay, refusing even that, clearing a parent's debts on top: the household ran on Abala's management, for years.

A widow from Cambridge, a nun from Halifax

Bose's experiments on electric waves began in 1894. By 1895 he was publishing in the Journal of the Asiatic Society of Bengal, The Electrician and the Proceedings of the Royal Society, working at wavelengths of about five millimetres — what engineers now call millimetre waves. In 1897, at Lord Rayleigh's invitation, he lectured on them at the Royal Institution in London. D. T. Emerson, writing in IEEE Transactions on Microwave Theory and Techniques in 1997, credits him with being the first to use a semiconductor junction to detect radio waves.

Two women entered his life at the end of the decade. Sara Chapman Bull, born Sara Thorp in 1850, was the widow of the Norwegian violinist Ole Bull and hosted philosophical seminars at her home in Cambridge, Massachusetts, where she had come under the influence of Swami Vivekananda. Margaret Noble, born in 1867 and educated at the Crossley Orphan Home and School in Halifax, Yorkshire, had followed Vivekananda to India and taken the name Sister Nivedita. Geddes says the two came to see Bose in his Calcutta laboratory in 1899; Nivedita herself, in a letter to Tagore of April 1903, dates her first meeting with Bose to the end of 1898. When Bose's health broke down after the Paris science congress of 1900, Geddes writes, Bull came over from the Continent, "found him an expert surgeon, and helped to nurse him back to health", and he convalesced at the Wimbledon home of Nivedita's mother.

Then came the patents. Probir Bondyopadhyay and Suchanda Banerjee, in the Indian Journal of History of Science in 2008, went through the British Patent Office's Illustrated Official Journal and found that Bose and Bull had jointly filed five provisional applications in 1901, the first on 9 May. Two became British patents in 1902, Nos. 15,467 and 18,430, both covering self-recovering solid-state detectors. The American application, for a "Detector for Electrical Disturbances" using galena, was filed on 30 September 1901 and granted on 29 March 1904 as US Patent 755,840. Its heading names "Jagadis Chunder Bose, of Calcutta, India, assignor of one-half to Sara Chapman Bull, of Cambridge, Massachusetts." Bondyopadhyay and Banerjee reproduce the application in Bose's own hand, from the US National Archives.

The letter of 17 May 1901

The famous refusal did happen, and Bose described it himself. Writing to Tagore from London on 17 May 1901 — eight days after the first provisional application — he told how, shortly before a lecture, "the multi-millionaire proprietor of a very famous telegraph company" had arrived in person with a patent form and asked him not to disclose his most important findings. In the English translation printed by Bondyopadhyay and Banerjee, the man said: "There is money in it - let me take out patent for you." Bose said no. The work he was engaged in, he wrote, "I consider that to be above commercial profit or loss".

The company is not named. Bondyopadhyay and Banerjee read the letter as a refusal of commercial control and a gag on publication, not of patents as such — which is the only reading consistent with the filings he had just made with Bull. It is fair to add that they are not neutral: Bondyopadhyay has argued for years, in the Proceedings of the IEEE in 1998 and elsewhere, that the detector Marconi used in his transatlantic trial of December 1901 was Bose's — an advocate's case, which this piece does not attempt to adjudicate.

The saintly version was published in Bose's lifetime by his friend and authorised biographer. Geddes wrote that after the 1901 offer "an American friend, indignant with what seemed such unpractical quixotism, forthwith patented the invention in his name in America, but Bose would not use his rights, and allowed the patent to lapse." Set that beside the documents: the friend was a co-applicant and half-owner, the application is in Bose's handwriting, and the British filings are not mentioned at all. What "lapse" meant is unclear — American patents of the period carried no renewal fees — and the likeliest reading is simply that no one ever licensed or enforced it. There is no evidence Bose earned anything from it. There is also no evidence he opposed its existence.

The word "Etheric"

The radio story has a similar source. Tagore, Bose's closest friend, asked Nivedita for an account of his discoveries, and in her long letter of 1903 she called him the "discoverer of Etheric Waves". Subrata Dasgupta, in his biography Jagadis Chandra Bose and the Indian Response to Western Science, puts it plainly: her knowledge of the subject "was clearly at fault". Later in the same letter, Dasgupta notes, she had Bose anticipating Marconi by some two years.

The 1895 demonstration was real. Geddes describes the waves travelling seventy-five feet from the lecture room through three walls, and through the Lieutenant-Governor, who was chairing, to ring a bell, discharge a pistol and explode a miniature mine. But Oliver Lodge had given a comparable proof in 1894, as the historian Kapil Subramanian has pointed out, and Dasgupta's central observation is harder to get around: "Nowhere in Bose's scientific papers on electric waves is even the possibility of radio telegraphy discussed". Bose was studying the optics of invisible light — polarisation, refraction, reflection. "Bose invented so that he could discover," Dasgupta writes. Marconi, who filed his provisional patent in June 1896, was building a telegraph.

The book she was helping to write

By 1901 Bose had already turned toward the response of metals and then plants to stimulus, the work that would occupy him for the rest of his life and that the Royal Society, under pressure from the physiologists John Burdon-Sanderson and Augustus Waller, declined to publish. Siladitya Jana, in Current Science in 2019, finds that he published no research papers between 1902 and 1912, and wrote books instead.

Nivedita's letters, collected by Sankari Prasad Basu in 1982, describe her helping to write them. Jana counts about twenty-nine letters that mention the work. On 17 March 1904 she called it "scientific secretarial work". In June 1905 Sara Bull wrote to Bose urging him to acknowledge Nivedita as his "co-worker". He never did, in print. After she died in Darjeeling in October 1911, he wrote to her sister: "And then the book which she was helping me to write is staring me in the face. I have not at present the strength to do anything with it."

How much she wrote is contested. Some of her biographers make her virtually a co-author; Jana, who checked her school records — which praise her "power of composition being extraordinarily good" — concludes she was a language editor with limited scientific training. Her first biographer, Lizelle Reymond, describes quarrels in which Bose demanded her words but not her ideas, but gives no source, and the French, English and Bengali versions of that passage disagree. Jana's suggestion, which is no more than that, is that Bose kept her Vedantic enthusiasm at arm's length because his plant work was already being called mystical. Nivedita's own letter of 17 May 1906 records that they left earlier authors uncited deliberately: "we decided on that deliberately".

Sara Bull died in January 1911 and Nivedita that October. When the Bose Institute opened in Calcutta on 30 November 1917, the memorial fountain at its entrance, with a bas-relief Geddes calls "Woman carrying Light to the Temple", was there, he explains, because of Nivedita. Abala Bose, meanwhile, served as secretary of the Brahmo Balika Shikshalaya girls' school from 1910 to 1936, later founded the Nari Siksha Samiti for women's education, and outlived her husband, who died at Giridih on 23 November 1937, living until 1951.

Why the truth is the better story

The myth needs Bose to be two things: robbed and pure. It makes Marconi the thief and the patent office the temptation, and it leaves Bose standing alone.

The record takes away both props and gives something more interesting. Bose did not lose radio; he was never trying to build it, and his real firsts — millimetre waves, the semiconductor detector — are his own. He did not scorn patents; he filed them, with a friend who paid for them and took half. What he refused was a businessman who wanted to decide what he could say in a lecture. That is a narrower principle than the legend's, and a more defensible one.

And he was not alone. The work rested on Abala's years of economy, Bull's money and nursing, and Nivedita's pen — and the two stories that made him a national saint owe a great deal to Nivedita and to Geddes, people devoted to him who were not careful about the details. The failure to credit Nivedita was his own. A man who refused to let a telegraph company own his ideas also chose, for reasons we can only partly reconstruct, not to name the woman who helped him put them into English. Both facts belong to the same adult life.

On sources. The salary protest and the words "with what privations…", the father's debts and their repayment, Abala Bose's household management and her four years as a medical student, the loss of the couple's only child ("their one great common sorrow…"), the 1895 Calcutta demonstration, Bull's and Nivedita's 1899 visit and Bull's nursing ("found him an expert surgeon…"), the Wimbledon convalescence, the fountain bas-relief, and the "American friend… allowed the patent to lapse" passage are all from Patrick Geddes, The Life and Work of Sir Jagadis C. Bose (Longmans, Green, 1920), read in full text at the Internet Archive; Geddes wrote during Bose's lifetime, as a friend, and is treated here as a sympathetic and not a neutral witness. The five 1901 British provisional applications, British patents 15,467 and 18,430, Bull's biography, the handwritten US application, and the English translation of Bose's Bengali letter to Tagore of 17 May 1901 (quoted: "the multi-millionaire proprietor…", "There is money in it…", "I consider that to be above commercial profit or loss") are from P. K. Bondyopadhyay and S. Banerjee, "Two Recently Discovered Patents of Professor Jagadis Chunder Bose," Indian Journal of History of Science 43.1 (2008) 57–72, whose letter text comes from Dibakar Sen (ed.), Patrabali (Bose Institute, 1994); the translation is theirs and the Bengali original was not consulted. Bondyopadhyay's 1998 Proceedings of the IEEE paper on the transatlantic detector was seen only as a citation. The US patent heading, dates and "assignor of one-half" wording are from the text of US Patent 755,840 on Wikisource. Nivedita's "discoverer of Etheric Waves", the phrases "was clearly at fault", "Nowhere in Bose's scientific papers…" and "Bose invented so that he could discover", the Marconi and Lodge dates and the anticipation-by-two-years claim are from the excerpt of Subrata Dasgupta's Jagadis Chandra Bose and the Indian Response to Western Science (25th-anniversary edition, Jadavpur University Press) published by Scroll.in in July 2026; the "two years" phrase is Dasgupta's paraphrase of Nivedita, not her wording, and the full letter was not seen. Lodge's 1894 demonstration is also noted by Kapil Subramanian, Scroll.in, 23 November 2017. Emerson's assessment is from D. T. Emerson, "J. C. Bose: 60 GHz in the 1890s," IEEE Transactions on Microwave Theory and Techniques 45.12 (1997) 2267–73, read at the author's NRAO page. Nivedita's birth in Dungannon and death in Darjeeling on 13 October 1911 are from standard reference accounts. Nivedita's letters and dates, "scientific secretarial work", Bull's "co-worker" letter, "we decided on that deliberately", the school register, the Reymond discrepancy, the absence of research papers 1902–1912, and Bose's letter to Mrs Wilson ("And then the book…") are from Siladitya Jana, "Sister Nivedita's role in J. C. Bose's publications: a historical perspective," Current Science 117.11 (2019) 1901–12, which cites Sankari Prasad Basu (ed.), Letters of Sister Nivedita (1982); Basu's edition itself was not consulted. The Royal Society's refusal and the roles of Burdon-Sanderson and Waller are from Ben Seal, "The Thinking Plant's Man," Science History Institute, 21 August 2025. Abala Bose's parentage, scholarship, school secretaryship and dates are from her Wikipedia entry and its cited sources, which give conflicting dates for the Nari Siksha Samiti; no date is given here for that reason. Bose's death date and place are from standard reference accounts. Not reached: ThePrint's excerpt from a Bose biography (blocked by a security check), the full text of Bose's Response in the Living and Non-Living, and the probate record of Sara Bull's contested will. The name and dates of the Boses' child are not recorded in any source consulted. The judgement that Bose's principle was narrower and more defensible than the legend's is this publication's own.