| Publication Type: | Journal Article |
| Year of Publication: | 1879 |
| Authors: | C. Gottfried Giebel |
| Journal: | Philosophical Transactions of the Royal Society of London, Series B |
| Volume: | 168 (Extra) |
| Pagination: | 250 - 257 |
| Date Published: | 1879 |
| URL: | https://archive.org/details/philtrans01816893 |
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