Cartouche's were primarily used to house the names of Pharaoh's, Royals or Egyptian gods only. Cartouches are usually positioned vertically, however they can still be positioned horizontally if the hieroglyphics are longer and need to be repositioned. Hieroglyphics: (Otherwise known as Ancient Egyptian Language) Ancient Egyptian symbols which represent the letters in a name or word. When using hieroglyphics, you spell the word how it sounds, not how it is spelt.
48 md / 4 men = 12 days. If 3 men are digging 6 trenches in 4 days then that means that they are digging 1.5 trenches per day. This means that each man can dig 0.5 of a trench per day. If you have 4 men digging each day, that means you can complete 2 trenches per day. This means that it will take 12 days to complete 24 trenches, using 4 men.
The depth may vary from 12 in southern climates, to 48 (or more) in northern climates. Dig the footing holes using post hole diggers if footings are fairly deep. The diggers keep the holes uniform -- keeping concrete use to a minimum. If you have a lot of deep footings, you may want to rent a power auger.