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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Greer, T. | 1927 | Barrett's Lepidoptera of the British Isles; a correction | Journal | Ent. | Details... |
| Erdtman, G. | 1928 | Studies in the Postarctic history of the forests of north-western Europe 1. Investigations in the British Isles | Journal | Geol. Foren. Forhand. | Details... |
| Phillips, R.A. & Watson, H. | 1930 | Milax gracilis (Leydig) in the British Isles | Journal | J. Conch. (Lond.) | Details... |
| Anon. | 1932 | Review: 'Bees, wasps, ants and allied insects of the British Isles' by E. Step | Journal | Ir. Nat. J. | Details... |
| Druce, G.C. | 1932 | The Comital Flora of the British Isles | Book | | Details... |
| Skovgaard, P. | 1932 | Birds ringed in Denmark, recovered in British Isles | Journal | Ir. Nat. J. | Details... |
| Skovgaard, P. | 1932 | Birds ringed in Denmark, recovered in British Isles | Journal | Ir. Nat. J. | Details... |
| Stendall, J.A.S. | 1935 | Review: 'The spiders and allied orders of the British Isles' by T.H. Savory | Journal | Ir. Nat. J. | Details... |
| Atkins, W.R.G. | 1938 | The disappearance of Zostera marina | Journal | J. Mar. Biol. Assoc. UK | Details... |
| Wilson, G. | 1938 | Review: 'The dragonflies of the British Isles' by C. Longfield | Journal | Ir. Nat. J. | Details... |
| Coe, R.L. | 1941 | Distribution of Eristalsis abusivus Collin (Diptera: Syrphidae) in the British Isles, with notes on the females | Journal | Ent. Monthly Mag. | Details... |
| Conway, V.M. | 1942 | Biological Flora of the British Isles no. 6. Cladium mariscus (L.) R.Br. | Journal | J. Ecol. | Details... |
| Dannreuther, T. | 1944 | Records of the striped hawk-moth (Celerio lineata livornica Esp.) seen or bred in the British Isles in 1943 | Journal | Trans. Soc. Br. Entomol. | Details... |
| Brunker, J.P. | 1946 | A hybrid sedge new to the British Isles | Journal | Ir. Nat. J. | Details... |
| Greig-Smith, P. | 1948 | Biological Flora of the British Isles no. 23. Urtica L., U. dioica & U. urens | Journal | J. Ecol. | Details... |
| Lewin, R.A. | 1948 | Biological Flora of the British Isles no. Sonchus L. (S. oleraceus L. and S. asper (L.)Hill) | Journal | J. Ecol. | Details... |
| Sowter, F.A. | 1949 | Biological Flora of the British Isles no. 27. Arum maculatum L. | Journal | J. Ecol. | Details... |
| Stendall, J.A.S. | 1949 | Review: 'The dragonflies of the British Isles' by C. Longfield | Journal | Ir. Nat. J. | Details... |
| Tansley, A.G. | 1949 | The British Isles and their vegetation (reprint of the 1939 first edition with corrections) | Book | | Details... |
| Williams, C.B. | 1951 | Seasonal changes in flight direction of migrant butterflies in the British Isles | Journal | J. Anim. Ecol. | Details... |
313 references found.