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Word Count
45,250 words, Guess
Page Count
181 pages
Identifiers
- Internet Archivephotometricrese00peirgoog
- Library of Congress Control Number07031689
- OCLC Control Number21570221
- Open LibraryOL6988947M
Classifications
- LCCQB4 .H33 vol. 9.
Subjects
Series Statement
- Annals of the Astronomical Observatory of Harvard College.
- vol. IX
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