Vol. IX, No. 10.] The Limestone Caves of Burma. 397 
[N.S.] 
age of the whole given as Palaeozoic, the Moulmein beds 
being provisionally placed in the ‘‘ lower carboniferous group 
of European geologists.’’ 
In 1863 W. Theobald from the evidence of a few fossils 
procured from Zwah-ga-byn, a limestone hill which forms a 
prominent landmark above Moulmein po is popu — known 
as the ‘*Duke of York’s nose,’’ prono ced the age of the 
limestone as equivalent to the jarbonirous fiinentotie of 
Europe. He also regarded it as probable that the limestone 
met with in the Mergui Archipelago belonged to the same 
formation.! 
To quote from Theobald’s Memoir :— 
‘*The most marked feature of this limestone is its mode 
of occurrence in steeply scarped hills, the sides of which 
overhang, as may be seen in the case of the ve P near 
Moulmein, which rise abruptly from the low inun 
plains between the Gaine and the Attaran rivers, a 
exhibit the precise appearance of what they undoubtedly 
were at no remcte geological period—sea-girt rocks, such 
as still stud the Mergui Archipelago, and which from their 
position in low-lying alluvial plains even now, during the 
rains, are approachable only by boats, through a mimic 
freshwater sea,’ 
Theobald also speaks of the existence of other extensive 
caves to the north-east beyond Toungoo 
It is not known what became of ‘the fossils mentioned 
by B. N. B : 
llowing nee were determined by F. Noetling* 
The fo 
who pronounced = to be of carboniferous (probably upper 
carboniferous) ag 
Schonpertas oldhami, Noetl. 
Lonsdaleia salinaria, Waag. and Wentz. 
nov 
Araepora cf ramosa, Waag and Wentz. 
Polypora cf. biarmica, Keyser 
Productus cf. sumatrensis, F. Roemer. 
Athyris, sp. 
Spirifer, sp. 
Bellerophon, sp. 
Vol. vat, Bhs ‘Theobald, On the Geology of Pegu. Mem. “Geol. Surv. India, 
0. 
a F, Neat ing, Carboniferous Fossils from Tenasserim. Ree. Geol. 
Surv. India, Vol XXVI, Pt. 3, pp. 96—100. 
