12 REPORT OF THE SECRETARY. 



4. Cretaceous Reptiles of the United States, by Dr. Joseph Leidy. 

 The contents of volume VI of the Miscellaneous Collections are: 



1. Monograph of the Diptera of North America, by H. Loew. 

 Edited by Baron R. Ostensacken. Parts 1 and 2. 



2. List of the Coleoptera of North America, by Dr. Jno. L. Le 

 Conte. Part 1. 



3. New Species of North American Coleoptera, by Dr. Jno. L. 

 Le Conte. 



Volume VII, Miscellaneous Collections, contains: 



1. Monograph of the Bats of North America, by H. Allen, M. D. 



2. Land and Fresh-water Shells of North America. Part 2. Pul- 

 monata, Limnophila, and Thalassophila, by W. G. Binney. 



3. Land and Fresh-water Shells of North America. Part 3. Am- 

 pullariida3, Valvatidas, Viviparidse, Fresh-water Rissoidse, Cyclo- 

 phoridas, Truncatellidee, Fresh-water Neritidas, Helicinidge. By W. 

 G. Binney. 



4. Researches upon the Hydrobiinse and allied forms. By Dr. 

 Wm. Stimpson. 



5. Monograph of American Corbiculadas, recent and fossil. By 

 Temple Prime. 



6. Check-list of the Invertebrate Fossils of North America, Eocene 

 and Oligocene. By T. A. Conrad. 



7. Check-list of Fossils, Miocene. By F. B. Meek. 



8. Check-list of Fossils, Cretaceous and Jurassic. By F. B. Meek. 



9. Catalogue of Minerals, with their formulas, etc. By T. Egle- 

 ston. 



10. Dictionary of the Chinook Jargon or Trade Language of Or- 

 egon. By Geo. Gibbs. 



11. Instructions for Research relative to the Ethnology and Phi- 

 lology of America. By Geo. Gibbs. 



12. List of Works published by the Smithsonian Institution. 



Of the two works mentioned in the last report as being in the 

 press, the first, entitled "Astronomical, Magnetic, Tidal, and Me- 

 teorological Observations within the Arctic Circle, by Isaac I. Hayes, 

 M. D.," has been completed and a small edition printed. A full 

 description of this paper was given in the report for 1865. It 

 forms a quarto volume of 283 pages, illustrated with six charts 

 and fifteen wood-cuts. The principal chart shows the discoveries, 

 tracks and surveys of the Arctic expedition of 1860 and 1861, pro- 

 jected on a scale of 1 to 1,200,000. Another chart shows the vi- 

 cinity of Port Foulke, the winter-quarters in 1860 and 1861 of the 



