Altar 0--clean 
AoA 
Zoomorph O 
N side: Mosses gone; 20% alga left 
BE side: Alga reduced, less one sides 
W side: White crust gone; mosses already gone; 20% alga left 
Front: black alga on rt side persisting 
Top: all clean, 
Zoomorph G 
N left: few remnants Leptotrema; Phyllopsora already gone; some alga on rt, 
N right: mosses gone; little alga left, 
W-l: mosses gone, alga mostly gone except on left 
W-2, W-3: little alga left on sides, 
B-2, E-3: little white crust left; Phyllopsora already gone, 
All quadrats clean now, 
