The results of ten years of study by the author of the anatomy of the nasal accessory sinuses and their relations to the optic nerves are summed up in this book. The first part treats of topographic anatomy and considers the numerous variations in position and size of the ethmoidal cells and the sphenoidal sinuses in their relation to the optic canal. These variations are arranged arbitrarily in twelve groups, each of which has some distinguishing features. Each group is well described and beautifully illustrated by reproductions of photographs (natural size) of specimens hardened in formaldehyd solution and so sectioned as to be very instructive. This English edition contains nearly twice as many illustrations as appeared in the German edition of 1906.
The second part deals with clinical considerations of the subject. While it is admitted that the pathologic data to prove the production of visual disturbance by sinus disease