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438. Atti. Vol. XXII. Disp. 10— 11. (Torino 1887.) 

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439. Memorias. Tomo XI. Madrid 1887. 4to. (3 Expl.) 



440. Revista de los progresos de las ciencias exactas &c. T. 22. No. 2—3. 

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441. E. de Hurmuzaki. Documente privitore la Istoria Romånilor. Vol. 1. 

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The Johns Hophins Uiiiversity, Baltimore, Maryland. 



442. Circulars. Vol. VI. No. 57. 1887. 4to. 



443. American Chemical Journal. Vol. IX. No. 2. Baltimore 1887. 



444. American Journal of Philology. Vol. VIII. No. 1. Baltimore 1887. 



445. Studies in Hist. and Polit. Science. V. Series. V— VI. Baltimore 1887. 

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446. Annals. Vol. XVII. Cambridge 1887. 4to. 



447. First Annual Report of the photogr. study of stellar spectra. Cambridge 

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The American Geographical Sodet y, New Yorh. 



448. Bulletin. 1886. No. 3. New York. 



The American Museum of Natural History, Central Park, Neiv Yorh. 



449. Annual Report of the Trustees. 1886—87. New York 1887. (2 Expl.) 

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450. XIX. Annual Report. Salem 1887. (2 Expl.) 



The Chief Signal Officer, V. S. Army, Washington, D. C. 



*451. International Meteorological observations. Febr. 1886. Washington 



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