That's Albertus Magnus if I remember correctly.
Can't read the text here. It seems to start off saying "a straight line to be drawn at any hour of the night" but then I get porces galli (French pigs) and go off the translation road
Not too clear on this device and I don't remember what was discussed here in any detail.
He's looking at the cosmos. Note the "S" on his pipe which corresponds to the "S" on one of the "pipes" around the sun. Albertus is telling us that to find the truth in our astronomy we must look at the part of the heavens that corresponds to our question, and that astrological divination is a subtle craft. There are twelve pipes, ie, twelve celestial divisions.