Category  I – On the construction of clocks from which can be told the passage of the constant and solar hours by means of water and candles

1. The castle water clock
2. The water clock of the drummers
3. The water clock of the boat
4. The elephant water clock
5. The beaker  water clock
6. The water clock of the peacocks
7. The candle clock of the swordsman
8. The candle clock of the scribe
9. The monkey candle clock
10. The candle clock of the doors

 CATEGORY II – On the construction of vessels and figures suitable for drinking sessionsה

1. A goblet which arbitrates during drinking parties
2. A goblet which arbitrates during drinking parties
3. An  arbiter for drinking parties (the castle wine dispenser
4. A boat placed on a pool during a drinking party
5. A pitcher for wine which is used in carousals
6. A figure who drinks the king’s leaving
7. A standing slave holding a fish and a goblet
8. A man holding a goblet  and a bottle
9. A dais  upon which are two shaykhs
10.  A slave girl who emerges from a cupboard holding a glass of wine

CATEGORY III – Manufacture of pitchers, basins and other things

1. A pitcher from which hot water, cold water and mixed is poured
2.  A pitcher which dispenses water for the king to perform his ritual ablutions
3. A  slave who pours water over the king’s hands
4. A peacock which discharges water from its beak
5. A basin of the monk from which can be told the quantity of blood
6. A basin of the two scribes for bloodletting
7. A basin of the reckoner from which can be told the quantity of blood
8. A basin of the castle which can be told the quantity of blood
9. A basin of the peacock for washing the hands
10. A basin of the slave for washing the hands

CATEGORY IV –  On fountains which change their shapes at known intervals, and on perpetual flutes

1. The fountain of the two tipping buckets
2. Two fountains, and two [tipping]-buckets
3. Alternating fountain of the two floats
4. Two alternating fountains of the two floats
5. The fountain of the bowl which changes shape at known intervals
6. Two fountains  which change shape at a known interval
7. Perpetual flute
8. Perpetual flute with two tipping buckets
9. Perpetual flute with a balance
10. Perpetual flute with two floats

CATEGORY V – On machines for raising water from pools, and from wells which are not deep, and from running streams

1. Machines for lifting water from a pool by an animal
2. Machines for lifting water from a pool by an animal
3. Lifting water with a figure of a cow
4. Machines for lifting water from a pool
5. A Machine for lifting water by means of a wheel

CATEGORY VI – It is heterogeneous, and consists of dissimilar designs

1.  A door for the king’s palace in Amid
2. An instrument to determine the center point of 3 points of the unknown position
3. A lock by means of 12 letters of the alphabet
4.  Four bolts on the back of a door
5. The boat from which can be told the passage of a constant hour