Darwin Online Manuscript Catalogue
| Identifier: | CUL-DAR77.93 |
| Date: | [Undated] |
| Name: | Darwin Charles Robert |
| Attributed title: | Newport `Philosophical Transactions' 1853: 253-258 |
| Description: | Newport, George. 1853. On the impregnation of the ovum in the amphibia. (Second series, revised.) And on the direct agency of the spermatozoon. Philosophical Transactions of the Royal Society of London 143, issue 143 (December): 233-90. |
| Document type: | Abstract |