10 GEOLOGICAL SURVEY OF THE TEREITORIES. 



The third class will embrace the more technical and matured results, 

 and will be issued in quarto form, and are designed more especially for 

 libraries and men of science. These volumes will be elaborately illus- 

 trated. 



To meet the wishes of some of the collaborators of the survey, who 

 desired the early publication of important results, a bulletin was pub- 

 lished during the past winter and two numbers issued. This will be 

 continued from time to time as circumstances may require. 



The following is a list of the publications of the survey up to the 

 present time : 



1. First, Second, and Third Annual Eeports of Progress for 

 1867-'68--69, 261 pages, 8vo. 



2. Fourth Annual Eeport of Progress for 1870, (Wyoming, &c.,) 

 511 pages, 8vo., with twenty-two wood-cut illustrations. 



3. Fifth Annual Eeport of Progress for 1871, (Montana, &c.,) 538 

 pages, 8vo., with sixty -four wood-cuts, two plates and five maps. 



4. Sixth Annual Eeport of Progress for 1872, (Idaho, &c.,) 844 

 pages, 8vo., with sixty-eight wood-cuts, twelve plates and five maps. 



5. Seventh Annual Eeport of Progress for 1873, in process of publi- 

 cation. 



6. Final Eeport of the Geological Survey of Nebraska during the 

 year 1867, 264 pages, 8vo., with a colored geological map and eleven 

 plates of Carboniferous fossils. 



7. Supplement to the Fifth Annual Eeport on the Fossil Flora of 

 the West, by Leo Lesquereux, 22 pages, 8vo. 



8. Synopsis of New Vertebrata from the Tertiary of Colorado, obtained 

 during the summer of 1873, by Prof. E. D. Cope, 19 pages, 8vo. 



Miscellaneous publications. 



9. No. 1. — Lists of elevations in that portion of the United States 

 west of the Mississippi. Collated and arranged by Henry Gannett, 

 assistant, pp. 47, 8yo. Second edition. A third edition of this impor- 

 tant paper will be issued shortly, very much enlarged and imjjroved. 



10. No. 2. — Meteorological Observations during the year 1872 ; Utah, 

 Idaho, and Montana ; prepared for publication by Henry Gannett, assist- 

 ant, 120 pages, 8vo. 



11. No. 3.— Hand-book of the Ornithology of the Territories of the 

 Northwest, by Dr. Elliott Coues, U. S. A., (in press.). 



12. No. 4. — Synopsis of the Flora of Colorado, by Prof. T. C. Porter 

 and John M. Coulter, 180 pages, 8vo. 



13. No. 5. — Catalogue of Photographic Negatives belonging to the 

 survey, by William H. Jackson, 83 pages, 8vo. 



14. No. 6. — Meteorological. Observations, taken by the survey during 

 1873, 70 pages, 8vo. 



