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Langley, S[amuel] P[ierpoiit]. The 

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A new form of juxtapositor 



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2600 MISCELLANEOUS. 



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3000 adjust:\[ext of 



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3010 EQUATOEIALS, IXCLUD- 

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3070 



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3080 HELIOMETEE. 



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3100 MICEOMETEE, VISUAL 

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