This admirable work is a reprint of a number of articles published in the Ophthalmoscope during the past year. As there is no recent work in English that deals in their entirety with the methods employed in the microscopic examination of the ocular tissues, this work of Greeff ought to be doubly welcome. The preparation of ocular material for sectioning, including the formulas of the various hardening fluids, stains, etc., as well as the processes followed in histologic examinations, are fully described in the general part, while a second, or special part, deals with the problems that arise in examining particular tissues and organs of the ocular apparatus. The contributors to this volume have done their work well and have left little to be desired, whether one uses it as a laboratory vade-mecum, or as a book of reference in which to find, for example, an exact description of Marchi's