Submitted on: 04 November 2005.
Revised on: 11 December 2005.
Accepted on: 07 January 2006.
___________________AMERICAN JOURNAL OF SCIENCE---AMER JOURNAL SCIENCE
Submitted on: 27 May 2021.
Revised on: 19 July 2021.
Accepted on: 10 September 2021.
___________________AMERICAN JOURNAL OF SCIENCE---AMER JOURNAL SCIENCE
Submitted on: 31 January 1999.
Revised on: 11 May 1999.
Accepted on: 30 May 1999.
___________________AMERICAN JOURNAL OF SCIENCE---AMER JOURNAL SCIENCE
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Submitted on: 15 April 2019.
Revised on: 04 July 2019.
Accepted on: 25 July 2019.
___________________AMERICAN JOURNAL OF SCIENCE---AMER JOURNAL SCIENCE
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Submitted on: 22 August 2000.
Revised on: 19 December 2000.
Accepted on: 01 January 2001.
___________________AMERICAN JOURNAL OF SCIENCE---AMER JOURNAL SCIENCE
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