ACADEMY OP SCENCES] BIOGRAPHY 17 



a foreign associate of the Royal Astronomical Society. He became a member of the American 

 Academy of Arts and Sciences in 1S92, of the American Philosophical Society in 1903, and of 

 the National Academy of Sciences in 1911. He was made a director of the B. A. Goidd fund, 

 under the auspices of the National Academy, in 1914, and at the same time an associate editor 

 of the Astronomical Journal. He had been for three years (1892-1894) associate editor of the 

 journal Astronomy and Astrophysics. In addition to the medals mentioned heretofore in this 

 article, he received from the French Academy of Sciences in 1893 the Arago gold medal, and in 

 1900 the Janssen gold medal; he was the recipient of the Janssen prize of the Astronomical 

 Society of France in 1906, and was awarded the Bruce gold medal of the Astronomical Society 

 of the Pacific in 1917. The last-named society had three times awarded him the Donohoe 

 comet medal. He was given the honorary degree of doctor of science by Vanderbilt University 

 in 1893, and that of doctor of laws by Queen's University, of Kingston, Ontario, in 1909. 



The voluminous character of his contributions to astronomical literature has already been 

 indicated, but we may add that a card catalogue of his writings includes no less than 900 items, 

 without being complete. A bibliography of his articles which appeared since his connection 

 began with the University of Chicago in 1895 has been published in the list of publications of 

 the faculties issued annually by the University of Chicago and also collected in two special 

 volumes of this character covering the first 25 years of the work of the university. These 

 contain the titles of 377 articles and 6 book reviews by Professor Barnard, to which number 

 will be added, as time permits their preparation, numerous posthumous papers covering his 

 unpublished observations. 



His last measurements with the 40-inch telescope were made on the night of December 16, 

 1922, when he secured the position of Baade's comet; his last visual observations with that instru- 

 ment were on December 21, when he made 19 estimates of the brightness of Nova Persei, 

 referred to 13 comparison stars; and his last use of that instrument was later on that night when 

 he made a photograph of the cluster Messier 36 with an exposure of two hours. A photograph 

 of the region of Gamma Leonis, made on the following night with the Bruce telescope, closed 

 his long and untiring work with that instrument. His last visual observation was of the occu- 

 lation of Venus on the morning of January 13, 1923, which he observed from the window of his 

 sick room. Thus closes the record of the astronomical activity of one of the greatest observers 

 of our time, of whom may be truly said, "Aperuit caelos." 

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