[ 10 ] 
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The Smithsonian Institu- 
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The Directors of the East 
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The Author. 
The Author. 
The Observatory, Edin- 
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The Author. 
The Authors. 
The Author. 
Sir H. T. De la Beche. 
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Observatory at Prague. 
The Smithsonian Institu- 
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Richard Taylor, Esq. 
United States Government. 
The Author. 
The Observatory, Prague, 
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