82 



Results of the Observations made at the Royal Observatory, Green- 

 wich, 1847, 1848, 1849. 4to. — From the Observatory. 



Results of the Magnetical and Meteorological Observations made at 

 the Royal Observatory, Greenwich, 1848 and 1849, 4to. 



Description of the Instruments and Process used in the Photographic 

 Self-Registration of the Magnetical and Meteorological Instru- 

 ments, at the Royal Observatory, Greenwich. 4to. 



Account of Improvements in Chronometers, made by Mr John J. 

 Giffe. 4to. — From the Royal Observatory. 



Papers and Proceeding^of the Royal Society of Van Diemcn'sLand. 

 Vol. I., Parts 1 and 2. 8vo. — From the Society. 



Astronomische Beobachtungen auf der Konigliche Universitats 

 Sternwarte in Konigsberg : — herausgegeben von H. L. Busch. 

 Abtheil. 23. Fol. — From the Observatory . 



Abhandlungen der Konigliche Gesellschaft der Wissenschaften zu 

 Gottingen. Band. 4. 4to. — From the Society. 



Nachrichten von der Georg- Augusts Universitat und der Konigliche 

 Gesenschaft der Wissenschaften zu Gottingen, 1850, Nos. 1-17- 

 12mo. — From the Society. 



Beitrage zur Metallurgischen Krystallkunde. Von J. ¥. L. Haus- 

 mann. 4to. — From the Author. 



Handbuch der Mineralogie. Von J. F. L. Hausmann. ler. Theil. 

 8vo. — From the Author. 



Plan and Description of the Original Electro-Magnetic Telegraph. 

 By W. Alexander, Esq. 8vo. — From the Author. 



Minutes of Proceedings of the Institution of Civil Engineers, con- 

 taining Abstracts of the Papers and of the Conversations. Vol. 

 I.-VIII. (1837-50.) 8vo. 



Catalogue of the Library of the Institution of Civil Engineers. 8vo. 

 — From the Institution. 



Journal of the Statistical Society of London. Vol. XIV., Part 2. 

 8vo. — From the Society. 



Journal of the Horticultural Society of London. Vols. I., II., III., 

 IV., v., and VI. Parts 2 and 3. 8vo. — From the Society. 



Notice sur les Altitudes du Mont Blanc et du Mont Rose, determi- 

 nees par des Mesures Barometriques et Geodesiques. Par M. 

 le Commandant Deleros. 8vo. — From the Author. 



The American Journal of Science |,nd Arts. 2d Series. Vol. II. 

 No. 33. 8vo. — From the Editors. 



