| 其他書名 | A Course of Six Lectures Delivered Before a Juvenile Auditory at the Royal Institution of Great Britain During the Christmas Holidays of 1891-92 |
| 出版 | A. and C. Black, 1892 |
| URL | http://books.google.com.hk/books?id=HkoYAAAAYAAJ&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |