BI 
11. A Preliminary Note on the Ecology of Part of the 
Riverine Tract of Burma. 
By L. Dupusy Sramp, B.A., D.Sc., A.K.C., F.G.S8. 
and Lesure Lorp, RES .A.S 
CONTENTS, 
Page 
{. Introduction .. is va a 91 
If. The Ecological Fact 92 
Ill. General Remarks on is Vegetation and Edaphic Control 94 
IV. Description of the heen Formations é 96 
V. The Connexion between Agriculture, Forestry and 
Loo ys a ie oueen! 
VI. Conclusion .. ae as SS we 100 
I. Inrropuction. 
The area dealt with in the present note extends roughly 
from the town of Prome (latitude 18°50’N.) 120 miles north- 
wards as far as Ye enangyaung, and embraces a strip of country 
on either side of the River iawnAdy 3 in all an area of about 
‘000 square miles. In the course of this investigation the 
authors have covered more than 1,200 miles on foot, but even 
then parts of the area have, of necessity, been left unvisited. 
The botany of Lower Burma has been studied—especially 
as regards the trees—by Kurz! and of recent years the 
economic aspects of the forests of Burma have received much 
until long after Kurz had completed his studies on the Forest 
Floras. Consequently any work on the inter- relationships 
for permission to incorporate this unpublished geological 
V 
Apart from the works of Kurz and the little handbooks 

! $. Kurz. Forest rSaghe of British Burma ; Superintendent, Govern- 
ment Printing, Calcut 
I Ww heoba Id, A "Sketch of the Geology of Pegu; Mem. Geol. Surv. 
ndia, Vol. X, pt. ; 
. oe Fi SseB and a recen mary see L . Dudley Stamp, An 
Outline of the Tertiary Geology of Benin Geol. Mag. Vol. LVIIL. Nov, 
1922. 
