b) Annee 1855 — 1856. Rapport sur Cexposition univer- 

 selle de 1855. Ronen 1856. 



c) Annee 1856. Rapport de la commission des medailles 

 sur Vexposition departementale tenue a Ronen en 1856. 

 Ronen 1856. 



35. Entomologische Zeitung. I7ter Jahrgang. Stettin 1856. 



36. VVürtembergische naturwissenschaftliche Jahreshefle 

 Stuttgart 1857. VIII. Jahrgang 3fes Heft, 1, 2te Abtheitung, X. 

 Jahrgang 3tes Heft, XI. Jahrgang Stes Heft, XII. Jahrgang 3tes 

 Heft, XHI. Jahrgang 1 & 2tes Heft. 



37. Smithsonian contributions to Knowledge : 



a) On the recent secular period of the aurora borealis. 



by Denison Olmsted, fVaslüngton 1856. 

 Ä) Appendix. Record oj auroral phenomena observed in 



the highem northern latitudes ; compiledby Peter Force. 



c) Archaeology of the United States, By Samuel F. Ha- 

 ven. /Washington City 1856. 



d) Investigations , chemical and physiological relative to 

 certain american P^ertebrata. By Joseph Jones M. D. 

 Jfashington City 1856. 



e) On the relative intensity of the heat and light of the 

 sun lipon different latitudes of the earth. By L, W. 

 Meech A. M. ff^ashington 1856. 



/) Illustrations of surface Geology. By Edw. Hitchcoch. 



Washington 1857. 

 g') Observations on Mexican history and archaeology, 



with a special notice of Zapotec remains etc., by 



Brantz Mayer. fVashington City 1856. 

 h') Researches on the Animonia - Cobalt Bases. By fVol- 



cott Gibbs and Frederick Aug. Genth. /Washington 1856. 



38. Tenth annual report of the board of regents of the 

 Smithsonian Institution etc. fVashington 1856. 



39. Report of the Commissioner of patents 



a) for the year 1854, 1855. Agriculture. /Washington 

 1855, 1856. 



b) for the year 1855. Arts and mannfactures. F'ol J 

 and II, /Fashington 1856. 



