Add to ORKGJohn Tyndall has won his scientific reputation not only as an explorer in the field of experimental physics, but also as a popular lecturer and a writer of science. Accordingly, some of his contemporaries wrote his career as the presenter to clear up the various questions that have arisen in his researches and to extend public knowledge of the subject. But some contemporaries wrote his career as the excellent expounder more than a pioneer in scientific subjects. Some wrote up that Tyndall has insisted on the value of scientific study as a discipline of the mind whenever there was an opportunity. But, especially after his address delivered before the British Association at Belfast in 1874, some passed strictures on his handling of subjects ...