Magnetic observation of sunspots, 1917-1924 [by] George E. Hale [and] Seth B. Nicholson von Hale, George Ellery, 1868-1938

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EDISON PETTIT 1889-1962 von Nicholson, Seth B.

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FRANK ELMORE ROSS 1874-1960 von Nicholson, Seth B.

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AWARD OF THE BRUCE GOLD MEDAL TO DR. RUDOLPH MINKOWSKI von Nicholson, Seth B.

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A New Trojan Asteroid, (1647) Menelaus von Nicholson, Seth B.

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The Sun . Giorgio Abetti. Macmillan, New York, 1957 (translation J. B. Sidgwick of 1954 revised edition). 336 pp. Illus. + plates. $12 von Nicholson, Seth B.

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Short-period fluctuations in solar activity von Nicholson, Seth B.

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SOLAR ACTIVITY IN 1953 von Nicholson, Seth B.

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SUNSPOT ACTIVITY DURING 1951 von Nicholson, Seth B.

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AN UNIDENTIFIED OBJECT NEAR JUPITER, PROBABLY A NEW SATELLITE von Nicholson, Seth B.

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SUNSPOT ACTIVITY DURING 1949 von Nicholson, Seth B.

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SUNSPOT ACTIVITY DURING 1947 von Nicholson, Seth B.

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COMET SCHWASSMANN-WACHMANN 1 (1925 II) von Nicholson, Seth B.

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JUPITER'S ELEVENTH SATELLITE von Nicholson, Seth B.

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SUNSPOT ACTIVITY DURING 1945 von Nicholson, Seth B.

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Ninth Satellite of Jupiter von Nicholson, Seth B.

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SOLAR ACTIVITY AT THE ECLIPSE OF JULY 9, 1945 von Nicholson, Seth B.

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SUNSPOT ACTIVITY DURING 1943 von Nicholson, Seth B.

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THE SUN IN ACTION von Nicholson, Seth B.

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The Ninth Satellite of Jupiter von Nicholson, Seth B.

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