Journal, Nat. Hist. Soc., Siam. No. 2. Vol. 3. 
ALE = 
= Ss — 
a ma a 
SSS 
SS 
SS ay 
a 
A 
Wings (natural size) of 
A. Acrocephalus orientalis. The Eastern Great Reed-Warbler. 
B. Arundinax aédon. The Thick-billed Warbler. 
