Number of administrative entities 1893-1899

When browsing through the scans I have done of Tej Bunnags book "The provincial administration of Siam", I noticed that Appendix 5 gives the numbers of the subdivisions within several of the circles (monthon).

Monthon	Districts	Subdistricts	Villages
Ayutthaya	25	479	4,447
Burapha	13	80	800
Chumphon	15	152	1,515
Nakhon Chaisi	11	254	1,571
Nakhon Ratchasima	7	-	378
Nakhon Sawan	20	506	1,845
Nakhon Sithammarat	17	232	2,669
Phitsanulok	19	825	4,006
Prachinburi	16	86	390
Ratburi	20	506	1,845
Sum	163	2,769	20,495

Kedah, Phetchabun, Phuket, and Udon are missing, the author wasn't able to find them in his source. He suspects that this was due to the fact that Kedah resisted the thesaphiban reform, while the other three were just created a short time ago and thus the new system wasn't established completely yet and thus did not report the numbers to Bangkok.

The mean number of each subdivision is somewhat different from today - 17.0 subdistricts per district is more than double the current value of 8.2; the villages per subdistrict has changed less strikingly from 7.4 to 10.3.