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Recognition of the malignant intraocular tumor in the earliest possible stage of its growth is of obvious importance. Diagnosis by ophthalmoscopy is not difficult in the initial stage, before the development of subretinal transudation and retinal detachment. Such an extremely early stage is practically never seen, except in some rare instances in which the tumor is near enough to the macula to create a serious disturbance of the central vision. Once transudation and retinal detachment have occurred, and especially if the tumor is located in the posterior half of the eyeball, diagnosis becomes extremely difficult and is seldom more than presumptive. Consequently, the addition of any pathognomonic feature to the present meager knowledge of this clinical picture, even though it is limited to half of the cases, should be of distinct value. The present paper reports such a feature, viz., detachment of the pars ciliaris retinae, which I observed in

Judged by its literature, the causation of glaucoma is unsettled. No effort to harmonize undoubted facts has met with general support. Whether glaucoma is a deformity or a disease, remains an open question. Thus Priestly Smith and his followers claim that glaucoma is a deformity of the eyeball, that an engorgement of the blood vessels in the posterior chamber pushes forward the lens and crowds the ciliary body and iris into the anterior angle, effectually blocking the outlet from the eye for the intraocular secretion. From the resultant intraocular tension he deduces the phenomena of primary glaucoma. The failure of this view to account for glaucomatous attacks in the young, in persons having no iris, in cases of intraocular tumor or dislocated lens, etc., has prevented its universal acceptance. Of those holding that glaucoma is a disease, part affirm that it is purely local; and part that it is the