130 
THE GEOLOGIST. 
Fig. 2. — Anotlier piece of dried clay, from the same pond, showing a long trail at a; 
and other trails, h, k ; a. bird's footprints (c) treading in an old trail at d ; a new 
gallery being formed at e subsequently to the bird's impressions on the soft mud ; f, 
old footprint of another bird under new gallery ; ff, orifice ; d, bubble-marks ; i, i, i, 
rain-prints. (Nat. size.) 
part had become nearly dry.* In advance of these is a more faintly 
* This minutely-spotted surface reminds one of that portion of the woodcut in 
plate 7, in vol. ii. of the ' Geologist,' which is said to be "pitted with worm-holes in the 
sheltered hollows." 
