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Poulkova. — Observations de Poulkova, publiees par Otto Struve. 
Yol. IX. Mesures Micrometriques des Etoiles Doubles. 
1878. 4to. — From the Observatory. 
Prague. — Astronomische, Magnetische, und Meteorologische Beobach- 
tungen an der K. K. Sternwarte zu Prag im Jahre 1878. 
— From the Observatory , 
Quebec. — Transactions of the Literary and Historical Society of 
Quebec. Sessions of 1877-79, 8vo. — From the Society. 
Rome. — Atti della P. Academia dei Lincei. Transunti, Yol. III. 
Fas. 1-7. 1878-79. 
Memorie. Serie 3 za . Classe di Scienze Eisiche, Matematiche e 
Naturali, Yol. II. Disp. 1, 2, 1878. 4to. Classe di 
Scienze Morali, Storichee Filologiche. Yol. II., 1878. — 
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St Petersburg. — Memoires de l’Academie Imperiale des Sciences. 
YIP Serie— Tome XXY. Nos. 5, 6, 7, 8, 9 ; Tome 
XXYI. Nos. 1, 2, 3, 4. 
Bulletins de l’Academie Imperiale des Sciences de St-Peters- 
bourg. Tome XXY. Nos. 2-4, 1878-79. — From the 
Academy. 
Jahresbericht der Nicolai-Hauptsternwarte. 8vo. St Peters- 
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Russische Expeditionen zur Beobachtung des Venusdurch- 
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graphischen Aufnahmen in Hafen Possiet. St Petersb. 
1877. 4to. — From the Russian Government. 
Annalen des Physicalischen Central- Observatoriums. Jahrg. 
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Repertorium fair Meteorologie, herausgegeben von der Ivaiser- 
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Salem. — Essex Institute Historical Collections. Yol. XIY. 1877. 
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San Francisco. — Proceedings of the California Academy of Sciences. 
Yol. VI. 1875. Yol. VII. Part 1. 1876.— From the 
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