2 PUBLICATIONS OP 



toids ; (32.) Harvey, Marine Algae N. A.; (22.) Gray, 

 Plants Wrightianfe, I; (33.) Davis, Flood Tide; (37.) 

 Whittlesey, Ancient Works in Ohio. 



The Appendix embraces: (24.) Walker, Eph. Neptune, 

 1852; (29.) Dowries, Occultations, 1852. 



39. Smithsonian Contributions to Knowledge. 1852. Yol. IV, 

 4to. pp. 426. Price $6. 



Contains : (40.) Riggs, Dakota Grammar and Dictionary. 



55. Smithsonian Contributions to Knowledge. 1853. Vol. V, 

 4to. pp. 538, and 45 plates. Price $6. 



Contains: (44.) Leidy, Fauna and Flora of Animals; 

 (41.) Leidy, Fossil Ox; (45.) Wyman, Rana pipiens ; 

 (43.) Harvey, Marine Algae N. A. II; (42.) Gray, Plauta 

 Wrightianae, II. 



56. Smithsouian Contributions to Knowledge. 1854. Vol. VI, 

 4to. pp. 476, and 53 plates. Price $6. 



Contains: (46). Torrey, Plantae Fremontianae ; (60.) 

 Torrey, Batis maritima ; (61.) Torrey, Darlingtonia Cali- 

 fornica ; (50.) Stimpson, Marine Invert. Grand Manan ; 

 (52.) Coffin, Winds of Northern Hemisphere ; (58.) Leidy, 

 Ancient Fauna Nebraska. 



The Appendix embraces: (54.) Downes, Occultations, 

 1853. 



76. Smithsonian Contributions to Knowledge. 1855. Vol. VII, 

 4to. pp. 252, 70 wood-cuts, and 74 plates. Price $0. 



Contains: (59.) Chappelsmith, Tornado; ('53.) Bailey, 

 New Microsc. Organisms ; (70.) Lapham, Antiquities Wis- 

 consin ; (72.) Leidy, Extinct Sloths N. A. 



The Appendix embraces: (73.) Publications Learned 

 Societies, I. 



78. Smithsonian Contributions to Knowledge. 1856. Vol. VIII, 

 4to. pp. 556, 9 plates, and 27 wood-cuts. Price $6. 



Contains: (71.) Haven, Archaeology U. S. ; (81.) Olm- 

 sted, Recent Period of Aurora ; (80.) Alvord, Tangencies 

 Circles and Spheres; (82.) Jones, Chem. and Phys. Res. 



The Appendix embraces : (84.) Force, Record of Auroras ; 

 (85.) Publications Learned Societies, II. 



