Bull. U. S. B. F., 1926. (Doc. 1015.) 
Fig. 2.— Upper portion of tidal creek (Porters Landing, Freeport, Me., smelt brook), looking upstream from 
near Porters Landing bridge, in early spring just before (about two weeks) breaking up of the ice 
Fig. 3. — Porters Landing smelt brook (Freeport, Me.), a short distance below mean high tide limit, in 
spring just before (about two weeks) breaking up of the ice 
