An edition of Horologiographia nocturna. Or Lunar horologiographie (1639)

Horologiographia nocturna, or, Lunar horologiographie

set forth and demonstrated (after a twofold manner) in the horizontall plane onely : upon which (and all other by the same reason) may in a manner, as plainely and speedily bee discerned the times of the night by the gnomonicall shadow, caused by the moone, as the times of the day upon any by the sun : serving as well in the day time for the sunne

By John Wybard