And then even if the rays are transmitted through the fins city to exceed that combines water is known to be possible; Fig. 1: Measurement of the possibility of passing the water from a well into a castle or city; Fig. 2: Altimetry with a sun quadrant and mirror; Fig. 14; p. 41; Fig. 14; p. 41; 1533; Petrus Apian: Horoscopion Apiani generale dignoscendis horis cuiusqumque generis aptissimum [...]. His accedit distantia[rum]; altitudinum; & profunditatum per idem hoc instrumentum dimetiendarum ratio longe accuratissima & ingeniosa [...]. [Ingolstadt]: [Apianus]; [1533]