The bare, granite domes around us were almost hemispherical in shape.
"Reminiscences of a South African Pioneer"
W. C. Scully
Outside the tube, as a result of these air motions in it, we have a hemispherical air wave produced, which travels out from the mouthpiece as a centre; and if we could examine the distribution of air pressure and velocity through all external space, we should find a distribution which is periodic in space as well as time, constituting the familiar phenomenon of an air wave.
"Hertzian Wave Wireless Telegraphy"
John Ambrose Fleming
The pileus is hemispherical to convex, and expanded, smooth, whitish, with a tinge of straw color, and covered with torn, thin floccose patches of the upper half of the circumscissile volva.
"Studies of American Fungi. Mushrooms, Edible, Poisonous, etc."
George Francis Atkinson