| Month | Subject | Author | Remark | |
| 08-01 | Card dial Regiomontanus | Fer de Vries | ||
| 08-02 | Horizontal card dial | Fer de Vries | For the IX-th antique hour | |
| 08-03 | Halazûn | Fer de Vries | ||
| 08-04 | Horizontal sundial construction using four circles |
Fer de Vries | ||
| 08-05 | Sundial transformations | Fer de Vries | ||
| 08-06 | Sundials by projection | Fer de Vries | ||
| 08-07 | Universal ring dial | Fer de Vries | ||
| 08-08 | Equator projection sundials 1 | Fer de Vries | ||
| 08-09 | Equator projection sundials 2 | Fer de Vries | ||
| 08-10 | Equator projection sundials 3 | Fer de Vries | ||
| 08-11 | Equator projection sundials 4 | Fer de Vries | ||
| 08-12 | Vertical sundials | Fer de Vries | An old construction |