The life-history of the rock barnacle (Balanus). Pt. 2 / by Theo T. Groom. On the irregular growth of the shell of the common limpet in confinement / by John E. Robson. A contribution to the zoning of the shore / by James Hornell. Microscopical studies in marine zoology / by James Hornell. 14. Sphaerozoum punctatum, a colonial radiolarian -- 15. The hydroid stage of Obelia geniculata -- 16. The stalked larva of Antedon -- 17. Creseis, a typical pteropod.
