"A vertical series of sloping roofs or broad slats, inclined outward and downward, forming the filling of a belfry-light, and designed to admit ventilation to the timber frame while protecting the interior from rain and wind, and to direct downward the sound of the bells."-Wright, 1902

Abat-vent

"A vertical series of sloping roofs or broad slats, inclined outward and downward, forming the filling…

"A sounding-board over a pulpit or rostrum, designed to reflect the speaker's voice downward toward the audience, or in any desired direction."-Wright, 1902

Abat-voix

"A sounding-board over a pulpit or rostrum, designed to reflect the speaker's voice downward toward…