was his niece. Published books Shearer, Cresswell. The renaissance of architecture in southern Italy; a study of Frederick II of Hohenstaufen and the Capua Triumphator archway and towers. Heffer: Cambridge, 1935. Scientific Papers A list of principal publications can be found on the Royal Society website. 1898. On the nerve terminations in the selachian cornea. J. Comp. Neurol. 8, 217. 1901. On the significance of certain phases in the life history of the malarial parasites. Montreal Med. J. 1903. (With Prof. Murbach.) On medusae from the coast of British Columbia and Alaska. Proc. Zool. Soc. Lond. 164. 1906. On the existence of cell communications between blastomeres. Proc. Roy. Soc. B, 77, 498. ------ Studies on the development of larval nephridia. Part I. Phoronis. M itt. Zool. Sta. Neapl,17, 487. ------ On the structure of the nephridia of Dinophilus. Quart. J. Micr. Sci. 50, 517. 1907. Studies on the development of larval nephridia. Part II. Polygordius. Phil. Trans. B y199, 199. 1910. On the anatomy of Histriohdella homari. Quart, jf. Micr. Sci. 55, 287. 1911. On the development and structure of the trochophore of Hydroides uncinatus (Eupomatus). Quart. J. Micr. Sci. 56, 543. 1912. The problem of sex-determination in Dinophilus gyrociliatus. Part I. The sexual cycle. Quart. J. Micr. Sci. 57, 329. 1913. (With D. J. Lloyd.) On methods of producing artificial parthenogenesis in Echinus esculentus and the rearing of the parthenogenetic plutei through metamorphosis. Quart. J. Micr. Sci. 58, 523. 1914. (With de Morgan and H. M. Fuchs.) On the experimental hybridization of echinoids. Phil. Trans. B, 204, 255. 1917. On the toxic action of dilute pure sodium chloride solutions on the meningococcus. Proc. Roy. Soc. B, 89, 440. ------ On the presence of an accessory food factor in the nasal secretion. 13 Jan., p. 59. ------ (With H. W. Crowe.) The role of the phagocyte in cerebro-spinal meningitis. Proc. Roy. Soc. B, 89, 422. 1919. On the action of electrolytes on the conductivity of bacterial emulsions. Contributions to medical and biological research dedicated to Sir William Osier, p. 250. ------Studies on the action of electrolytes on bacteria. Part I. The action of monovalent and divalent salts on the conductivity of bacterial emulsions. J. Hyg. Camb. 18, 337. 1920. (With T. R. Parsons.) The acid-base equilibrium in the cerebro-spinal fluid. J.Physiol. 54, 62. 1921. Amount of heat liberated by B. coli when grown in the presence of free aminoacids. J.