Some Points in the Surgery of the Brain and its Membranes.

Under this modest caption, the author has presented a masterly review of modern brain surgery to the advancement of which he has in no small part contributed. Given as one of the Lettsomian lectures under the auspices of the Medical Society of London, he has nevertheless covered most thoroughly the entire field of brain surgery; since what is applicable to tumors is equally applicable to other surgical affections. Beginning with some reminiscences of Lettsom, that demonstrating the latter's immense worth and charity should have made him better known than has the ill-directed wit of an epigramist, he first emphasizes the importance of a clear understanding of the spaces between the meninges. To the drainage of collections of fluids in these spaces, especially will his name become linked because of methods perfected by him, that had their inception in America. His boldness led him to leave buried within the cranium what