Hartwig, E. Die Ciliaten des Gezeiten-Sandstrandes der Nordseeinsel Sylt. Vol. I. Systematik [and] II. Ökologie

Chittenden, F.H.; Fink, D.E. The Green June Beetle

Krapf, J. Lewis Travels, Researches, and Missionary Labours During an Eighteen Years' Residence in Eastern Africa Together with Journeys to Jagga, Usambara, Ukambani, Shoa, Abessinia, and Khartum and a Coasting Voyage from Mombaz to Cape Delgado

Goulson, D. A Buzz in the Meadow

Savage, A.A. Key to the Larvae of British Corixidae