OF ARTS AND SCIENCES. 443 



Om Siphonodentalium Vitreum, en ny Slsegt og Art af Dentali- 

 dernes Familie af Dr. Michael Sars, Prof, ved Cbristianias Univer- 

 sitet. 4to pamph. Christiania. 1861. 



Om Kometbanernes Indbyrdes Belliggenhed, Besvarelse af Uni- 

 versitetets Prisopgave for 1860, af H. Mohn. 4to pamph. Chris- 

 tiania. 1861. 



Resum^ du Programme de I'Universite do Christiania pour le 

 1" Semestre 1861. — Introduction par M. le Professeur C. Fearn- 

 ley. 4to pamph. Christiania. 1861. 



Om Cirklers Beroering. Besvarelse af Universitetets Prisopgave 

 for 1859, af C. M. Guldberg. 4to pamph. Christiania. 1861. 

 Isaac Lea, LL. D. 



Observations on the Genus Unio. Vol. VIII. Pt. 2. 4to. Phila- 

 delphia. 1862. 



Remarks on the Number of Unionidce, etc. 8vo pamph. Phila- 

 delphia. 1862. 



Check-List of the Shells of North America, Unionidaj. 8vo pamph. 

 Philadelphia. 1862. 



Publications of Isaac Lea on Recent Conchology. — Extracted 

 from a List of American Writers on Recent Conchology, by George 

 M. Tryon, Jr. 8vo pamph. Philadelphia. 1861. 

 Society of Physical Sciences of Saint Gall. 



Bericht uber die Thatigkeit der St. Gallischen Naturwissen- 

 schaftlichen Gesellschaft wahrend des Vereinsjahres 1858 - 60 und 

 1860-1861. 2 vols. St. Gallen. 1860-61. 



Beitrage zur Anatomic und Entwicklungsgeschichte der Algen- 

 gattung Lemanea. Von B. Wartmann, Dr. Philosophise. 4to pamph. 

 St. Gallen. 1854. 

 H. de Saussure. 



Orthoptera Nova Americana. (Diagnoses Praeliminaires.) (Series 



1 and 2.) — Extr. de la Revue et Mag. de Zoologie. 16mo. 



2 pamph. Paris. 1859 - 61. 



Description d'une Serie d'Hymenopteres Nouveaux de la Tribu 

 des Scoliens. — Extr. de la Gazette Entomologique de Stettin. 

 16mo pamph. Stettin. 1859. 



Note sur Quelques Oiseaux du Mexique. — (Extr. de la Revue 

 et Mag. de Zoologie, 1850, No. 3.) 16mo pamph. Paris. 1859. 

 J. S. Newherry. 



Report upon the Colorado River of the West, explored in 1857 



