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Naturforschemh Gesellschaft, Leipzig. — Silzungsberichte, 

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K. b. Akadcmie. — Philos.- philol. Classe, Sitzungsberichle, 



1881, II, Bd. 3-5; 1882, 1-3; II, 1,2. Abhandlungen, Bd.XVI. 

 Abtheil , 2. — Silzungberichte. Mathem. -physikal. Classe, 



1882, II. 1-4. Abbandlungen, Bd. XV, Abtheil., 3. — Abhand- 

 lungen der histor. Classe. Band XVI, 1. Munich. 



Société des sciences, agriculture et arts de la liasse- Alsace. 



— Bulletin trimestriel, 1881, 4 e fascicule; 1882, 1-5. Stras- 

 bourg, 1882; in-8°. 



Coppernicus Verein fur W issenschaft und Kunst zu Tliom. 



— Mitthcilungen. Heft. IV; in-8°. 



Geologische Reichsanstalt, Wien. — Jahrbuch, Jabrg., 188I, 

 4; 4882. — Verhandlungen, 1881, 8-18; 1882, 8-1 1. — Abhand- 

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Anlhropologische Gesellschaft in Wien. — Miltheilungen, 

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Amérique. 



Pickering (Edward, C). — Statement of work donc at the 

 Harvard Collège Observatory (1877-82). Cambridge, 1882; 

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— A plan for securing observations of the variable stars. 

 Cambridge, 1882; br. in-8° (13 pages). 



Johns Hopkins University. — American chemical journal, 

 vol. III, n ' 5 and G; IV, 1-4. — American journal of philology, 

 vol. II, 8; III, 9, 10, M. — Seventh annuai report, 1882. 

 — American journal of malhemalics, vol. IV, 2, 5, 4; V, 1. 

 Cireulars, n"* 15, 15, 17, 19,20. — Studies from the biological 

 laboratory, vol. Il, 3. 



Muséum of comparative zoôtogy, at Harvard Collège, 

 Cambridge. — Bulletin, vol. VIII, 12; IX, 1-8; X, 1. — 

 Memoirs, vol. VII, n° 2, part. 2. 



