Freeman Bibliographical Database
| Identifier: | F3698 |
| Date: | 1875 |
| Concise reference: | Darwin, C. R. 1875. [Memorandum on insects visiting Viola tricolor (heart's-ease)]. In Lubbock, John. 1875. On British wild flowers, considered in relation to insects. London: Macmillan and Co., pp. 62-63. |
| Detailed reference: | (John van Wyhe) |