May 1874 had a nest somewhere in the crevices of the rocks. Stelgidopteryx serripennis was in abundance and numbers of Cathartes were circling about the tops of the cliffs. By 11 A.M. we reached the Relay from 10 miles S. of Baltimore when we were obliged to disembark to await a 9.15 evening train. The country from Harpers ferry to Washington is a the finest for collecting that I have seen but then in few points where one could locate as the country is almost entirely unsettled. Just outside of Washington I saw as many as four Mel. erythropoda, in the spire fields, flying from an isolated tree to another as the train approached; Bupada? tortile dorsa were also frequent & I had a passing view of a Sparrow sitting on a little knoll, which I took to be Buspija Anna. At Relay we had a good dinner & lunched away the afternoon & evening. My knee is very painful & gives me perfect agony at times. Birds noted here were Cardinalis fs., Keiph. brictor, May, Cardic (Steg.) serripennis (in hundreds about & under the stone abutments of the R.R. bridge). Taking the train for Baltimore we were jolted across the city in a transportation coach,