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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1908 1
1909 1
1910 1
1916 1
1918 1
1920 1
1922 2
1928 1
1929 1
1930 1
1931 1
1932 2
1941 1
1942 1
1946 1
1992 1
2010 1
2011 1
2021 0
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19 results
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Page 1
The Geologic Rôle of Phosphorus.
Blackwelder E. Blackwelder E. Proc Natl Acad Sci U S A. 1916 Aug;2(8):490-5. doi: 10.1073/pnas.2.8.490. Proc Natl Acad Sci U S A. 1916. PMID: 16586638 Free PMC article. No abstract available.
YARDANG AND ZASTRUGA.
Blackwelder E. Blackwelder E. Science. 1930 Oct 17;72(1868):396-7. doi: 10.1126/science.72.1868.396. Science. 1930. PMID: 17819634 No abstract available.
RESEARCH AS USUAL.
Blackwelder E. Blackwelder E. Science. 1942 Aug 14;96(2485):158-9. doi: 10.1126/science.96.2485.158-a. Science. 1942. PMID: 17833998 No abstract available.
Meteor Crater, Arizona.
Blackwelder E. Blackwelder E. Science. 1946 Jul 12;104(2689):38-9. doi: 10.1126/science.104.2689.38-b. Science. 1946. PMID: 17773903 No abstract available.
PALEOZOIC GLACIATION IN ALASKA.
Blackwelder E. Blackwelder E. Science. 1932 Sep 2;76(1966):212-4. doi: 10.1126/science.76.1966.212. Science. 1932. PMID: 17788191 No abstract available.
THE MENLO PARK MASTODON.
Blackwelder E. Blackwelder E. Science. 1929 Mar 8;69(1784):xiv. doi: 10.1126/science.69.1784.0xiv-s. Science. 1929. PMID: 17789972 No abstract available.
PALEOGEOGRAPHY OF NORTH AMERICA.
Blackwelder E. Blackwelder E. Science. 1910 Jun 10;31(806):909-12. doi: 10.1126/science.31.806.909. Science. 1910. PMID: 17787186 No abstract available.
19 results
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