XVIII NOTES ON THE PROGRESS OF SCIENCE. 



American birds, known to Mr. Audubon, there are 716 species given in 

 the present work, being 221 more than are contained in the works of 

 that celebrated author. In the present work, also, the birds of the 

 United States for the first time are arranged in the genera and families 

 established by modern naturalists, and no exertion has been spared, 

 we believe, by the distinguished naturalists who have undertaken its 

 preparation, to present a work in all respects a complete Ornithology 

 of the United States. 



New Theorems, Tables and Diagrams for the Computation of Earth- 

 work; illustrated by numerous original engravings, and a series of 

 lithographic drawings from models, showing all the solid forms which 

 occur in railroad excavations and embankments ; by John Warner, 

 A. M., author of Studies in Organic Morphology, etc. This work, a 

 complete manual for the mensuration of railroad excavations and em- 

 bankments, of shafts, tunnels and workings in mines, contains, also, a 

 separate theoretical treatise, and an appendix on graphical processes, 

 the methods of equivalent square bases and equivalent level heights ; 

 and is splendidly illustrated with plates, scales and diagrams of all the 

 combinations of solids in earthwork, the whole the result of immense 

 labor and original research on the part of the author. 



Catalogue of the Fishes of the Eastern Coast of North America, 

 from Greenland to Georgia, by Theodore Gill. This work, which 

 forms a part of the Proceedings of the Academy of Natural Sciences of 

 Philadelphia, and has also been published separately, gives as complete 

 an enumeration of the fishes that inhabit the waters that bound our 

 continent, as the present state of ichthyological science will admit. 



The Appendix of the Report of the Smithsonian Institution for 1860 

 (published in 1861) contains much valuable scientific information, 

 presented in a popular manner. Among the subjects treated of, 

 we may specify the following: "Lectures on Mollusca or 'Shell- 

 fish' and their Allies" by Philip P. Carpenter, Ph. D.. of England; 

 " Lectures on Roads and Bridges" by Fairman Rogers, Professor of 

 Civil Engineering, University of Pennsylvania ; " General Views on 

 Archaeology" by A. Marlot, of Lausanne, Switzerland ; " The Micro- 

 scope ," translated from " Aus der Natur, etc." Leipzig, 1858; " Cu- 

 vier's Memoir of Haily" translated by C. A. Alexander; "Notices of 

 the Progress of our Knowledge regarding Magnetic Storms" by Gen. 

 Edward Sabine, of England ; etc. etc. 



We present to the readers of the Annual of Scientific Discovery for 

 1862, the portrait of CAPT. JOHX A. DAHLGREN, U. S. N. distin- 

 guished in science for his researches and discoveries in relation to ord- 

 nance and projectiles. 



