Proc. Roy. Socy. of Edin. ] 
L'Vol. XXX. 
Fig. 101. — Otterston Loch. View from a similar position to that of fig. 100, but 
looking in the opposite direction, showing a portion of a large association of 
Polygonum amphibium on the water in the foreground, and the bank below 
the trees covered with marsh plants, such as Carex rostrata, C. paniculata, 
Phalaris arundinacea, etc. 
Fig. 102. — Otterston Loch. View along the east shore, looking north, showing 
Iris Pseud-acorus, etc. at the margin, which is stony in some places. The. 
ruin in the centre of the picture is of historical interest. 
Mr George West. 
[Plate 51 . — Referred to on page 163. 
