The marrow of astrology [electronic resource] the second part. Wherein is contained, a table of houses, calculated for the latitude of London: with tables of semidiurnal and seminocturnal arches. Also tables of twilight and mundane aspects; and the whole doctrine of nativities, laid down in twenty genitures, according to the true intent and meaning of Ptolomy, wherein is discovered the errors of Argol, Regiomontanus, and others. The like never before done in English. By John Bishop, student in astrology and chimistry.