Word: ways
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Dates: during 1930-1939
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Bart J. Bok, assistant professor of Astronomy, spoke on "The Structure of the Milky Way" at the same meeting, as did Donald H. Menzel, associate professor of Astronomy on "The Interpretation of Absorption Lines...
Meanwhile Dr. Darlington, down in the Haltian Mountains, was wending his way through the jungle behind a "pratico," who cuts out the trail with a machete. In 1934 the had made the first zoological studies in that particular region...
...meeting of the International Astronomical Union in Stockholm, Sweden, from August 3 to 10, papers were delivered by three men from Harvard. Dr. Shapley spoke on "The Distribution of Galaxies and the Absorption of Light in space." He confirmed previous indications that our own discshaped galaxy, the Milky Way, is surrounded by an immense, low-density globe of scattered stars...
...Harvard Observations show that this Milky Way "globe" has a diameter of about 80,000 light years (a light year is the distance light travels in a year at the rate of 186,000 miles a second). The diameter of the flat disc of the Milky Way in which nearly all the stars of the system are located, is of the order of 100,000 light years...
These conclusions were made by observing the magnitude of over 2000 variable stars in all parts of the Milky Way system. Since stars of this type all have about the same candle-power--about 200 times that of the sun--their magnitude determines their distance...