Fig. 3. Microphotographs of latex microsphere distributions in the vicinity of AWS contact lines formed on placing droplets on glass slides. The top row shows a time series of images obtained from a droplet initially maintained in a high humidity atmosphere for 34 min, then open to evaporation and photographed (100x) at 0.8, 2.5, and 6.5 min of evaporation. The bottom row shows a similar time series, except that the suppressed evaporation period was 20 min, and magnification was 400x.