<p style='text-align: justify;'>This Venetian edition of Peuerbach's <i>Theoricae novae </i>was copied from Apian's 1528 edition, printed in Ingolstadt. Subsequently, the work went through several further editions. Apian's edition added new woodcuts as well as notations to some of those from earlier editions. Some errors in the woodcuts in the 1528 edition were repeated in this Venetian edition of 1537. This woodcut, a new version of a diagram of the original edition of Peuerbach's treatise (c. 1474), shows the four orbs and the epicycle of the Moon. The three interior orbs are similar to the orbs of the Sun: two orbs printed black and a white orb sandwiched between them and divided in two by a circle. The black orbs are said to be 'deformed' (<i>difformes</i>), or 'relatively eccentric' (<i>eccentrici secundum quid</i>), because their two surfaces are not concentric: one of them is concentric with the World, while the other has the same centre as the white sandwiched orb, called the eccentric or deferent of the epicycle of the Moon (<i>deferens epicyclum Lunae</i>), abbreviated as the deferent of the Moon. This white orb is eccentric to the centre of the World on both its inner and outer surfaces - in Peuerbach's terms, it is 'absolutely eccentric' (<i>eccentricus simpliciter</i>). Inside this deferent is a small sphere (<i>sphaerula</i>), the epicycle, to which the body of the Moon is attached. In Peuerbach's terms, it is 'immersed in the depth of the third orb' (<i>profunditati orbis tertii immersa</i>). The centre of the epicycle is on the circle that divides the deferent orb into two equal parts. The epicycle (with the planet attached to it, represented in the diagram in four different positions) moves according to the motions of the deferent and has its own circular rotation. The deferent has its own motion and is also subject to the motion of the other (black) orbs. The black orbs are called the deferent orbs of the apogee of the Moon's eccentric, or deferent (<i>orbes augem eccentrici Lunae deferentes</i>), because the apogee (or <i>aux</i>) of the Moon's deferent varies according to their motion; they move together in that the narrower part of the larger orb is always above the wider part of the smaller orb. The outermost white orb is concentric to the World, encompassing the other three and revolving around them - in Peuerbach's words, it surrounds the aggregate of the three other orbs (<i>deinde habet orbem mundo concentricum aggregatum ex tribus aliis ambientem</i>). On the diagram, it is labelled 'the first orb deferent of the Head of the Dragon' (<i>orbis primus deferens Ca[put] Draconis</i>). Also marked on the diagram are the centre of the World (<i>cent. mundi</i>) and the centre of the deferent of the Moon (<i>cent. defe[rentis]</i>). The line passing through the centre of the World, the centre of the deferent, the points of the deferent that are most distant from the centre of the World (the apogee, <i>aux defe[rentis] epicy[clum]</i> as it is marked on the diagram), and those that are least distant (the perigee, or <i>oppositum augis</i>), is the axis of the deferent orbs of the apogee. It corresponds to the line called the line of the apogee (<i>linea augis</i>) in the theory of the Sun. The innermost circle on the diagram does not belong to an orb. It is described by the centre of the deferent as it moves around the centre of the World, and is divided in two by the axis of the deferent orbs of the apogee. The point on this axis and on this circle which is opposite to the centre of the deferent is called the 'opposite point' (<i>punctum oppositum</i>).</p>
