1. The Ordovician trilobites of the Bala area, Merionethshire;Whittington;Palaeontogr. Soc. (Monogr),1966
2. The Ordovician Trilobites of the Shelve Inlier, West Shropshire;Whittard;Palaeontogr. Soc. (Monogr),1967
3. The stratigraphy of the moel Hebog district between Snowdon and Tremadoc
4. A shelly fauna from the Snowdon volcanic series at Twll Ddu, Caernarvonshire
5. The Ordovician Trilobite faunas of South Shropshire, IV;Dean;Bull Br. Mus. nat. Hist.,1963