156 Presents. 



Observations, &c. (continued). 



Levelled Heights. Madras Presidency, Season 1886-87. 8vo. 



Dehra Dun 1888. The Survey. 



Kiel : Sternwarte. Das Aequinoctium fiir 186OO. 4to. Kiel 1882 ; 



Untersuchungen iiber das Cometensystem 1843 I, 1880 I, und 



1882 II. Theil 1. 4to. Kiel 1888. The Observatory. 



London : Standard Weights and Measures Department. Report 



by the Board of Trade on their Proceedings and Business 



under the Weights and Measures Act, 1878. Folio. London 



1888 ; Report on some Investigations of Standards of Lengths, 



during 1886-88. Folio. London. The Department. 



Melbourne : Department of Mines. The Gold -Fields of Victoria. 



Reports of the Mining Registrars for the quarters ended March 



and June, 1888. Folio. Melbourne ; Annual Report of the 



Secretary of Mines and Water Supply. Folio. Melbourne 1888. 



The Department. 



Paris : Bureau International des Poids et Mesures. Travaux et 



Memoires. Tome VI. 4to. Paris 1888. The Bureau. 



Comite International des Poids et Mesures. Proces-Verbaux des 



Seances de 1887. 8vo. Paris 1888. The Comite. 



Pennsylvania: Geological Survey. Annual Report. 1886. Part 3, 



and Atlas. 8vo. Harrislurg 1887 ; Atlases, Western Middle 



Anthracite Field (Part 2), and Bucks and Montgomery 



Counties. 2 vols. 8vo. The Survey. 



Pesth : Konigl. Ungar. Central- A nstalt fiir Meteorologie und 



Erdmagnetismus. Jahrbucher. Bd. XVI. 4to. Budapest 1888. 



The Institute. 



Prague : K. K. Sternwarte. Magnetische und Meteorologische 



Beobachtungen. 1887. 4to. Prag 1888. The Observatory. 



Rio de Janeiro : Observatoire Imperial. Annales. 4to. Ibio de 



Janeiro 1887. The Observatory. 



Rome . Osservatorio del Collegio Romano. Pontificia Universita 



Gregoriana, Vol. XXVII. Num. 1-5. 4to. Eoma 1888. 



The Observatory. 



Washington: U.S. Coast and Geodetic Survey. Bulletin. 



Nos. 1-2, 4. 4to. Washington 1888 ; Report. 1886. 4to. 



Washington 1887. The Survey. 



U.S. Geological Survey. Monographs. Vol. XII. 4to. Washington 



1886. The Survey. 



U.S. Patent Office. Official Gazette. Vol. XLIV. Vol. XLV. 



Nos. 1-9. 8vo. Washington 1888. The Office. 



U.S. Signal Office. Annual Report. 1887. 8vo. Washington. 



The Office. 



War Department. Surgeon- General's Office. Index Catalogue 

 of the Library. Vol. IX. 4to. Washington 1888. The Office. 



