• Scientific Investigations, 1913

      Ritchie, J.; Massy, A. L.; von Betegh, L.; Matthews, D. J.; Department of Agriculture and Technical Instruction for Ireland (Dublin, The Stationery Office, 1913)
      I. A new British commensal Hydroid, Perigonimus abyssi, Sars, by James Ritchie. * II. Notes on the evidence of age afforded by the growth rings of oyster shells, by Anne L. Massy, Plates I-XI. * III. Hydrocoele embryonalis, by L. von Betegh, Plate I. * IV. The salinity and temperature of the Irish Channel and the waters South of Ireland, by Donald J. Matthews, Plates I-XV. *