Map to illustrate the Siamese question.

Bunga Mas (golden flower) to the R&ja of Ligor-the Siamese
Officer who specially interested himself in the Malay States.
The Chiefs of Perak allege that the Siamese (or Pethni Malays
over whom the Siamese claim sovereignty) have, in the course
of the last 40 or 50 years, crossed the northern borders of
Perak, and occupied a very large area of Perak territory, and
in 1874 the Sultan of Perak asked the British Government to
assist him in obtaining the restoration of this tract of country.
I will now turn to the Eastern States--Petani, Kelantan and
Trengganu-over the first of which, I believe, the Siamese now
claim right of administration, and over the two last a sort of undefined suzerainty, born of the practice, which still obtains in
Kelantan and Trengganu, of sending the Bunga Mas to Siam.
In the Treaty of Bangkok, dated June, 1826, are three
clauses concerning the Malay States,* those are articles X.,
XII. and XIII., a reference to these clauses will show (Art. X)
an enumeration of the English and Siamese countries respectively. In the list of Siamese countries neither Petani, Kelantan, nor Trengganu is mentioned, though the sentence
closes with the words "and other Siamese provinces." But
Art. XII. specially exempts the States of Kelantan and Trengganu, and it is difficult to understand why, when Senggora,
Junk Ceylon and Kedah were named, Petani, if then an undoubtedly Siamese State, should have been omitted.
After the conclusion of this treaty of 1826, matters appear
to have remained quiet for a number of years, Siamese and
British being engaged in the administration of their undisputed possessions, without raising, or giving cause to raise,
questions of national rights over independent countries; and
during this time the clauses of the treaty regarding Kelantan
and Trengganu appear to have been outwardly observed,
though, from what occurred in 1862 it may be.supposed that
Siam had, while seeking and obtaining (as for some time was
the case with Perak) the transmission to Bangkok of the
Bunga Mas, sought to impress upon the minds of the
* See Appendix.