Part 68 (1/2)

1896, January Fessenden's electrostatic theory of comets.

1896 Chandler's Third Catalogue of Variable Stars.

1896 Publication of Lick Observatory Photographic Atlas of the Moon, part i.

1896, February Effects of pressure on wave-length described by Humphreys and Mohler.

1896, April 5 Opening of new Scottish Royal Observatory on Blackford Hill, Edinburgh.

1896, April Pickering's photometric determinations of light curves of variable stars.

1896 One of the stars of Castor spectroscopically resolved into two by Belopolsky.

1896, May Third Astrographic Chart Conference at Paris.

1896, Aug. 9 Total eclipse of the sun visible in Novaya Zemlya.

Reversing layer photographed by Shackleton.

1896, Aug. 30 Death of Hubert A. Newton.

1896, Sept. 18 Death of Hippolyte Fizeau.

1896, Oct. 20 Death of F. Tisserand. Succeeded by Maurice Loewy.

1896, Nov. 13 Detection by Schaeberle of Procyon's missing satellite.

1896, Nov. 26 Death of Benjamin Apthorp Gould.

1896, November Second series of hydrogen-lines discovered by Pickering in stellar spectra.

1896, December Zeeman's discovery of spectral modifications through magnetic influence.

1896, December Oxygen-absorption identified in the sun by Runge and Paschen.

1896 Study of lunar formations by Loewy and Puiseux.

1896 Mounting of the Mills spectrograph at the Lick Observatory.

1897 Installation at Greenwich of the Thompson 26-inch photographic refractor.

1897 Publication of Miss Maury's Discussion of the Photographed Spectra of 681 Stars.

1897 Callandreau's researches on cometary disaggregation.

1897 Braun's determination of the earth's mean density.

1897 Tenuity of calcium vapour in chromosphere demonstrated spectroscopically by Sir William and Lady Huggins.

1897 Completion at the Cape Observatory of McClean's spectrographic survey of the heavens.

1897 Twenty-one Wolf-Rayet stars found by Mrs. Fleming in Magellanic Cloud.

1897 Percival Lowell's _New Observations on the Planet Mercury_ presented to the American Academy.

1897, April 8 McClean recognises oxygen-absorption in helium stars.

1897, May 9 Death of E. J. Stone, Radcliffe Observer.

1897, June 10 Death of Alvan G. Clark.

1897, June 18 Spectrum of a meteor photographed at Arequipa.

1897, Oct. 21 Inauguration of the Yerkes Observatory.

1897 Rabourdin's photographs of nebulae with the Meudon reflector.

1897 Dr. See's discoveries of Southern double stars with the Lowell 24-inch refractor.

1898, Jan. 22 Total eclipse of the sun visible in India.

1898, February Binary character of Zeta Geminorum ascertained spectroscopically by Belopolsky.

1898 Star with proper motion of nearly 9” discovered by Innes and Kapteyn from the Cape Durchmusterung plates.

1898, March 8 Nova Sagittarii photographed on Draper Memorial plates.

1898, June 20 Opening of Grand-ducal Observatory at Konigsstuhl, Heidelberg.

1898 Keeler succeeds Holden as Director of the Lick Observatory.

1898 Bruno Peter's results in stellar parallax.

1898 Lewis Swift's discoveries of nebulae at Echo Mountain, California.

1898 Hale's photographic investigation of carbon stars.

1898, Aug. 14 Discovery of Eros by Witt.

1898 Flint's investigations of stellar parallax by meridian differences.

1898 Easton's spiral theory of the Milky Way.

1898 Seeliger's research on star distribution.