Secondly, we will treat the converse problem, how to determine the shape when the projections in each presentation are given. Looking back at the list just given above, let us write down in each presentation the projections only.
Mala projections:
Uncus, Pallor, Bidens, Frenum, Plebs, Moles, Urna.
Vesper projections:
Orcus, Ocrea, Uncus, Cardo, Polus, Crates, Frenum, Urna, Thyrsus.
Pluvium projections:
Bidens, Cudo, Luctus, Verbum, Urna, Moles, Vitta, Securis, Cervix.
Lar projections:
Frenum, Plebs, Moles, Urna, Cura, Vitta, Polus, Penates.
Now let us determine the shape indicated by these projections. In now using the same tables we must not notice the italics, as the shape is supposed to be unknown. It is assumed that the reader is building the problem in cubes. From the Mala projections we might infer the presence of all or any of the tessaracts written in the brackets in the following list of the Mala presentation.