STEREOSCOPIC SPECTROHELIOGRAMS.—A remarkable pair of photographs of hydrogen (Hα) flocculi, showing a stereoscopic effect, have been forwarded to us by Prof. Hale. They were taken with a new ...

Bilateral multifocal iris pigment epithelial cysts, also known as iris flocculi, may result from a shared genetic mutation in smooth muscle that affects the iris and aorta, Jerry A. Shields ...

They develop just after the sun’s surface shows “calcium flocculi”: a nubbly appearance that signals an unusually large output of ultraviolet light. Shortly after the sun gets nubbly ...