Proceeding on his Deputation to England, Dr. Bose gave his first lecture, on the 20th May 1914, at Oxford,—where the late Sir John Burden Sanderson and his followers were the leaders of biological thought—in presence of very distinguished scientists. It was a grand success. Actual visualisation by physical demonstration of the results of his novel researches at once convinced those who were present. He next proposed to give a discourse on Plant Response before the University of Cambridge. The interest in this lecture became so very keen that the Botanical Department of Cambridge went to the length of importing soil from India to give the plants the most favourable conditions for exhibiting their specific reactions. At the lecture, the large Botanical Theatre became filled with scientific specialists, dons and advanced students, who followed with great attention the experiments with which he illustrated his discourse. He was greeted with applause by the eminent scientists who thronged the lecture-theatre, at the end of every experiment. Sir Francis Darwin, the eminent botanist, in proposing a vote of thanks to Dr. Bose, said that 'he was filled with admiration, not only for the brilliancy of the work but for the convincing character of the experiments.' The scientists next assembled in great force, on the 29th May 1914, to hear the 'Friday Evening Discourse' of Dr. J. C. Bose on 'Plant Autographs and their Revelations,' at the Royal Institution, which was highly appreciated. At the end of the Discourse, Sir James Dewar, President of the Institution, gave an 'At Home' in honour of Dr. and Mrs. Bose.[34]

THE MAIDA VALE LABORATORY

The demonstrations of a far-reaching character which Dr. Bose gave evoked considerable public interest in England. His private laboratory at Maida Vale, in London, became the object of pilgrimage to the leading men of thought there. Sir William Crookes, the President of the Royal Society, came and became 'much impressed by the most ingenious and novel self-recording instruments.' Professor Starling, the author of the standard work on Physiology, and Professor Oliver, the well-known Plant Physiologist, also became impressed by the delicacy and importance of Dr. Bose's work and methods. Professor Carveth Read, author of "Metaphysics of Nature," wondered how far the researches would profoundly affect the philosophical thoughts. Mr. Balfour, the ex-premier, became enthralled with what he saw. Professor James A. H. Murray, Editor of the 'Oxford New English Dictionary,' and Bernard Shaw, the famous dramatist, felt themselves attracted to the great Indian Scientist and came to pay their homage to him. Even Lord Crewe, the then Secretary of State for India, paid a visit to his laboratory and spoke warmly of the pride which he and the Government of India felt for his discoveries and of high gratification to him that India should once more make such contributions for the intellectual advancement of the world. The leading newspapers wrote eulogistically of his researches. The well-known scientific journal Nature devoted ten columns to an illustrated synopsis of his discoveries. Lord Hardinge, the then Viceroy, wrote a congratulatory letter to him—"It has been a source of immense gratification to the Viceroy to know that the foremost place in the special branch of research has been taken by one of India's most distinguished sons. The success you have won will only serve to stimulate your efforts and those of your pupils to other scientific investigations which will redound still further to the honour of those who conduct them, and of India, the country of their birth."[35]

From England Dr. Bose proceeded to the Continent, where his researches had already evoked keen interest.

On the 27th June 1914, he gave an address, illustrated with experiments, before the University of Vienna, which stands foremost in Biological researches. He was greeted with enthusiasm by the savants there. Some of the workers in plant physiology became so very much impressed with his demonstrations that they expressed a desire to be trained under him. Professor Molisch, the Director of the Pflanzen-physiologisches Institute of the Imperial University of Vienna, in proposing a vote of thanks, spoke highly of the great inspiration which the Viennese scientific men received from his discourse and dwelt on the indebtedness of Europe to India for the method of investigation initiated by Dr. Bose—method, which rendered it possible to prove deep into plant-life and bring forth results of which they could not hitherto dream. And the University of Vienna officially addressed the Secretary of State for India asking that special thanks of the University be conveyed to the Government of India for the impetus given to them by Dr. Bose's visit. Dr. Bose was next to start for Germany on his scientific mission, and address the University of Strassburg, Leipzic, Halle, Berlin and Bonn and then attend the international congress at Munich, but, as the War broke out, he was compelled to come back to London.[36] On his way back, he gave a Discourse before the eminent scientific men in Paris.

On his return to London, medical men evinced great interest in his researches. Sir John Reid, President of the Royal Society of Medicine, and Sir Lauder Brunton, Physician of His Majesty the King Emperor, paid a visit to his laboratory to witness the action of drugs upon plants. Sir Lauder Brunton became of opinion that 'much light would be thrown on action of drugs on animals, by first observing their effects on plants.' As a result of this visit, Dr. Bose was invited to give an address to the Royal Society of Medicine in the beginning of winter. But, as the period of his Deputation was about to expire, the Society cabled to the Government of India for an extension, which was granted. Dr. Bose then delivered a lecture, before the Royal Society of Medicine, on the 30th October 1914. The Royal Society of Medicine officially addressed the Secretary of State for India as follows:—

"... The lecture was one of the most successful we have had yet and evoked the keenest interest in the audience, Sir Lauder Brunton, Bt., and others taking part in the discussion, and warmly congratulating Prof. Bose and the Society on the value of his work. Since then I have received many expressions of appreciation that the Society was able to offer its fellows such an interesting demonstration of an entirely new departure in Biological Science." "At the invitation of the Psychological Society of London, Dr. Bose next delivered an interesting lecture on his theory of Memory Image."[37] He also gave an Address before the London Imperial college of Science.

DR. BOSE IN AMERICA

Dr. Bose's discoveries in the meantime evoked great interest in America. He was invited by several leading scientific bodies to come over there and acquaint them with the results of his wonderful researches. So he next went to America. "While in America, he was swamped with letters and telegrams for lecture engagements from Maine to California" wrote Professor Sudhindra Bose M.A., Ph.D., of the Iowa University at that time, in the Modern Review.[38] "He has had so many calls for lectures from various Scientific societies, Colleges and Universities, that if he could speak twice a day and every day in the week, he could not hope to comply with all of those invitations in much less than a year." As he was in the United States, only for a few weeks, "he spoke before such learned bodies as the New York Academy of Sciences, the American Association for the Advancement of Science, the Brooklyn Institute of Arts and Science, the Philosophical Society of Philadelphia, and joint meeting of Academy of Science, the Botanical Society, and the Bureau of Plant Industry at Washington. Among the larger Universities, he gave addresses at Harvard, Columbia, Iowa, Illinois, Chicago, Michigan, Wisconsin.... Everywhere Dr. Bose has met with a very hearty welcome from the people of the American Republic. Even the Hon'ble Secretary of State, William Jennings Bryan, invited him to give a demonstration of his work at the State Department in Washington—an honour of unusual significance.... Dr. Bose has been made the subject of many magazine articles, newspaper editorials, cartoons and poems"[38].... "The famous Smithsonian Institute showed its high appreciation by submitting a report of Prof. Bose's work to the Congress. The Bureau of Plant Industry in Washington recognised his work on plant physiology as a very important contribution for the advancement of agriculture.... At the Harvard University his work has been received with high appreciation. President Stanley Hall, who is one of the leading psychologists of the day, has introduced Prof. Bose's work in the Post-graduate course of the Clarke University. His books have also been prescribed for physiological courses in different Universities in America, and in one of the leading Universities there, a special course of lectures is devoted to Prof. Bose's investigations on plant irritability...."[39]

The Columbia University, the largest in the United States, requested Dr. Bose to provide facilities in his Laboratory "for the reception of foreign students, who are desirous of familiarising themselves first hand with his apparatus and methods."