| 其他書名 | Letter on Some Points of the Geology of Texas, New Mexico, Kansas, and Nebraska; Adressed [sic] to Messrs. F. B. Meek and F. V. Hayden |
| 出版 | The author, 1858 |
| URL | http://books.google.com.hk/books?id=vLgQAAAAIAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |