awarded the Hayden Memorial Geological Award of the 

 Academy of Natural Sciences of Philadelphia, and in 1972, the 

 National Academy of Sciences awarded him the Charles Doolit- 

 tle Wolcott Medal for research in Precambrian life. Of course, 

 Elso's most enduring memorial rests with his students and close 

 associates whom he tutored in the rigors of scientific thought 

 and methodology. Many of these are strategically placed in posi- 

 tions where they have made or are making their own impact in 

 the field that he had a large hand in rejuvinating. (Based on 

 report in Taxon 33:557-560, 1984.) 



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