Book Reviews. ?Contributions to the study of the early development and imbedding of the human ovum.? I. An early ovum imbedded in the decidua. By Thomas H. Bryce, M.A., M. D., Lecturer in Anatomy, University of Glasgow, and John H. Teacher, M.A., M. D., Lecturer on Pathological Histology, University of Glasgow. With ten plates and twelve figures in the text. Glasgow: James Maclehose & Sons, Publishers to the University, 1908. Price, 12s. 6d. net