103. On the Thunder-Stones of Nigeria: Being Extracts from a Report by Dr. Pierce M. Dwyer, President of the Ilorin Province of Northern Nigeria.
| Autor: | Dwyer, Pierce M., Lugard, Frederick |
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| Zdroj: | Man, 1903 Jan 01. 3, 183-184. |
| Databáze: | JSTOR Journals |
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