Albert Ripley Leeds, who died of cancer of the stomach, on March 13, at his home in Germantown, Philadelphia, was born in that city on June 27, 1853. He graduated from the High school there in 1860, and entered Harvard in the same year, graduating from that university in 1865. Before graduation he was appointed professor of Chemistry in the Philadelphia High school, and in the same year to the same chair in the Franklin Institute, the Philadelphia Dental college, and Haverford college. Under the stress of work incident to these positions Ins’ health gave way, necessitating his resignation in 186g. * He spent the next two years in travel and study in England, France, Germany, and Italy, and on his return organised the department of Chemistry at the , Stevens Institute of Technology, Hoboken, N. J., where he remained as a professor for thirty-one years, resigning {he chair orfy one week before his death.

Dr. Leeds was best known to waterworks men through interest which he tdqk in the filtration of water–an interest which at one time prompted him to throw in his lot with a filtration company, which, however, was not a success financially. Since 1872 he was prominent in waterworks circles as an expert in water analysis, and filled the position of chemist to the water boards of Hoboken, Newark, and Jersey City, N. J., and those of, AlbaTiy and Jamestown. N. Y.; Philadelphia and Reading, Pa.; New London, Conn.; Plymouth, Mass.: Wilmington, Del.; Ottawa, Ont., and other cities. In 1871.) the College of New Jersey conferred on him the degree of Doctor of Philosophy, and in 1881 he became a member of the Pennsylvania state board of health and chair man of its council of analysts. He was likewise ;* distinguished number of the American and New England Waterworks associations, a foreign member of the British Association for the Advancement of Science, a fellow of the same society in America, and of the American, English, and German Chemical so defies. Dr. Leeds, who was also president (by election) of the American Chemical society and sec retary of the New York Academy of Sciences, war a voluminous writer upon analytical, technical, and general chemistry, on which subject valuable papers appeared from his pen in German, British, and American publications.

In 1871 he married Margaret West, great-grand daughter of Gen. Reed, first president of the State of Pennsylvania, and on her death, Anne, daughter of William H. Webb, secretary of the Philadelphia and Reading Railroad company, who. with two children two brothers, and a sister, survive him.

By the death of Dr. Leeds the world of science is one distinguished student the poorer, the community loses an upright and public-spirited citizen, his associates, a faithful friend, and the company of prac tical chemists, a careful investigator, an accurate fact getter, a profound and brilliant scholar, and a con scientious and lucid teacher. His lifework ended with a life well spent, the memory of which will last through future generations.

A correspondent tells us that although Dr. Leeds knew he could not live beyond Easter, and probably not so long, he never flinched from doing his work at the Stevens Institute, nor did the students or am of his colleagues know of the hourly agony he was enduring. And when at last the week before he died he found he had to give up, he called all the students together to bid them farewell, shaking them all by the hand and saying a word of kindness to each. The scene was very affecting, and while the majority were in tears Dr. Leeds kept up to nearly the last, when he, also, broke down. What added to the patheticness of the last scene of all was the fact that the students had subscribed for a testimonal to be presented to him as a token of their respect and affection for their friend and professor, not realising that death was so soon to carry him off. It took the form of a handsome silver loving cup, which was taken to him by a delegation of the students and presented to him at his home in Germantown a day or two before he died.

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