0. DOCID:11099 1927 "Research Notes from the Harvard Observatory" 0.0303953671112453<br>
1. DOCID:13253 1936 "The McDonald Observatory" 0.0206719210412407<br>
2. DOCID:10721 1925 "On the Daylight Visibility of Stars from a Mine Shaft" 0.0204514570806811<br>
3. DOCID:14439 1940 "Abstracts of Papers" 0.0191415910863796<br>
4. DOCID:14366 1940 "The Active Region on the Sun's Surface" 0.0189767491110975<br>
5. DOCID:14629 1941 "Note on an Erroneous Statement Concerning Pre-Nova Stars" 0.0184048685664904<br>
6. DOCID:11940 1930 "The National Academy of Sciences. II" 0.0179665269373824<br>
7. DOCID:10508 1925 "Abstracts of Papers Presented at the Madison Meeting, November 9, 10 and 11" 0.01669273428135<br>
8. DOCID:13044 1935 "Abstracts of Papers" 0.0164649373535149<br>
9. DOCID:9294 1920 "Preliminary Results of Analysis of Light Deflections Observed during Solar Eclipse of May 29, 1919" 0.016291020794431<br>
10. DOCID:11238 1927 "The Lunar Eclipses of 1927" 0.015630947022239<br>
11. DOCID:12863 1934 "Variation and Evolution among the Stars" 0.0152788631515881<br>
12. DOCID:11850 1930 "The National Academy of Sciences. II" 0.0150415758878591<br>
13. DOCID:10441 1924 "The National Academy of Sciences" 0.0148375087225654<br>
14. DOCID:8674 1917 "A Topographic Map of Wisconsin" 0.0146898654892761<br>