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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Belfast Naturalists' Field Club | 1887 | Summer Session: Magilligan and Limavady | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Knowles, W.J. | 1887 | The prehistoric sites of Portstewart, county Londonderry | Journal | J. Roy. Hist. Archaeol. Assoc. Ir. | Details... |
| Stewart, S.A. | 1888 | Manuscript notes on Flora of the NE of Ireland in S. A. Stewart's personal copy of 1888 edition | Manuscript | | Details... |
| Stewart, S.A. & Corry, T. | 1888 | The flora of the north-east of Ireland | Book | | Details... |
| Hasse, L. | 1890 | Objects from the sandhills at Portstewart and Grangemore, and their antiquity | Journal | Proc. Pap. Roy. Soc. Antiq. Ir. | Details... |
| Praeger, R.Ll. | 1891 | New or rare north of Ireland plants | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Anon. | 1892 | Rubus chamoemorus as an Irish plant | Journal | Ir. Nat. | Details... |
| Hart, H.C. & Barrington, R.M. | 1892 | Rediscovery of Rubus chamoemorus in Ireland | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1892 | The flora of the Sperrin mountains | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1892 | White centaury (Erythraea centaureum) | Journal | Ir. Nat. | Details... |
| Belfast Naturalists' Field Club | 1893 | Summer Session: Benevenagh | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Campbell, D.C. | 1893 | The macro-lepidoptera of the Londonderry district | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1893 | The macro-lepidoptera of Londonderry district | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1893 | The macro-lepidoptera of the Londonderry district | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1893 | Waxwing near Londonderry | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1893 | Lepidoptera of Londonderry | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1893 | Iceland gull (Larus leucopterus) at Londonderry | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1893 | Spring migrants at Londonderry | Journal | Ir. Nat. | Details... |
| Campbell, D.C. | 1893 | Re-appearance of quails near Londonderry | Journal | Ir. Nat. | Details... |
| Hart, G.V. | 1893 | Lepidoptera of the Londonderry district | Journal | Ir. Nat. | Details... |
367 references found.