=Death of Professor Bunsen.=--With the death of Robert Wilhelm Bunsen, at Heidelberg, August 16th, the world loses a student whose name is inseparably connected with nearly all the chemical work that has been done in the last fifty years, for it is safe to say that hardly a discovery has been made or experiment performed to the success of which some process, property, or instrument discovered, invented, or suggested by Bunsen, and usually named after him, has not contributed. A sketch of this illustrious chemist, with a portrait, and an enumeration of his principal works, each of which might be characterized as a milestone in the advance of the science, was published in the Popular Science Monthly for August, 1881 (vol. xix, page 550). One of the principal events in his life since that sketch was published was his election, in 1883, as one of the eight foreign associates of the French Academy of Sciences--the highest honor that that institution is competent to confer. Besides Bunsen's personal interest in the work and success of his students, one of his most salient traits, as described by a careful and appreciative biographer in the New York Evening Post, was his absentmindedness concerning what he had himself accomplished. He was afflicted with an "incipient aphasia," which made it impossible for him to talk about them. "He could not answer verbal questions, whether oral or written. He could not have passed a decent examination in his own discoveries. Let the question come in the shape of an emergency in a chemical operation, and a wealth of knowledge would be poured out, but let it be put in words and he could not answer it." He is said to have answered a student once, who asked him about some substance, that he knew nothing about it--"You will have to look up the literature." The student looked up the literature, and found that it consisted of a single article, and that by Bunsen! Professor Bunsen prized what would stimulate him to effort, enjoyed life, was fond of travel and interested in everything human, and was a good novel reader.