40 EEPORT OF THE SECRETARY. 



some have been completed, others are still under way, and one or 

 two not yet commenced. The following is a statement of their 

 present condition: ^ 



1. Land and Fresh Water Shells — part I. Terrestrial Pulmonata. 

 By W. G. Binney. Of this work the manuscript is entirely com- 

 pleted and the woodcuts engraved. 



2. Land and Fresh Water Shells — part IL Fresh Water and Ma- 

 rine Pulmonata. By W. G. Binney. The whole of this work has 

 been stereotyped, and will soon be ready to be issued. 



3. Land and Fresh Water Shells — part IIL By W. G. Binney. 

 Including all the water-breathing univalve shells except the Mela- 

 niadaj. This work has likewise been stereotyped, and is ready for 

 publication. 



4. Land and Fresh Water Shells— part IV. Melaniadee. By G. W. 

 Tryon. The manuscript of this has been completed and most of the 

 woodcuts engraved. 



5. Land and Fresh Water Shells — part Y. Corbiculadas. By Tem- 

 ple Prime. Of this the stereotype plates are almost completed. 



6. Land and Fresh Water Shells — part VI. Unionidie. A work 

 by Mr. Lea, of Philadelphia, supersedes for the present any other 

 publication on this subject. 



7. Marine Shells — parti. From the eastern coast of North Amer- 

 ica, by Br. W. Stimpson. 



8. Marine Shells — part II. From the western coast of the same 

 continent, by P. P. Carpenter. The last two works have been com- 

 menced and numerous woodcuts drawn or engraved to illustrate 

 them; but no definite period can be fixed for their completion. 



9. Bibliography of North American Conchology to the year 1860, 

 by W. G. Binney, parts I and II. This work, which is a supplement 

 to those previously mentioned, has been stereotyped and copies dis- 

 tributed to institutions. 



Another work belonging to the octavo series, but not included in 

 the above list, is the Review of American Birds in the Collections of 

 the Smithsonian Institution — part I. Northern and Middle America. 

 By Professor S. F. Baird. 



This work is intended to present a descriptive account of the very 

 large collection of American birds in charge of the Smithsonian In- 

 stitution, with an enumeration of such other specimens as may serve 

 to illustrate the geographical distribution of the several species. 

 In 1858 Professor Baird prepared an account of the birds sent to the 

 Institution by the different expeditions for surveying the railroad 



