46 The Wilson Bulletin — Xo. 103 



Virginia, to the Fort Hunt Road ; to Arcturus ; along the 

 river to Dyke and Oaks ; and thence along the uplands back to 

 Wellington, Virginia, Character of country traversed : wood- 

 land, 20 per cent ; marsh, 10 per cent ; farmyards, 1 per cent ; 

 orchards, 2 per cent ; fields, 67 per cent. Total distance trav- 

 eled, 22^ miles. Time in field, 5 :00 a. m. to 5 :00 p. m. To- 

 tal number of species observed, 89 ; individuals, 1526. Mr. 

 and Mrs. Leo D. Miner. 



9. — Valley of the Potomac and Anacostia Rivers, from 

 opposite Alexandria, Virginia, to Benning, D. C, and College 

 Park, Maryland. Traveled by electric car from Congress 

 Heights, D. C, to Anacostia, D. C. and from Riverdale, 

 Maryland, to Woodridge, D. C, 4 miles ; on foot, 18 miles, 

 in the vicinity of the Potomac River from opposite Alexan- 

 dria to Congress Heights ; along the Anacostia River from 

 Anacostia to Woodridge, D. C. ; across country to College 

 Park, Maryland; and thence to Riverdale, Maryland. Char- 

 acter of country traversed : woodland, 40 per cent ; meadows, 

 4 per cent; roadways, 22 per cent; wooded swamps, 17 per 

 cent; mud flats, 11 per cent; river shore, 3 per cent; and 

 marshes, 3 per cent. Total distance traveled, 22 miles. Time 

 in field, 4 :00 a. m. to 7 :00 p. m. Total number of species ob- 

 served, 98 ; individuals, 1458. E. R. Kalmbach and I. N. 

 Gabrielson. 



10.— Rock Creek Park, D. C, Piney Branch, D. C./ and 

 the Anacostia River Valley from Benning, D. C, to Bladens- 

 burg, Maryland. Traveled by electric car from Rock Creek 

 Park to Benning, D. C, and return, 12 miles ; on foot, 1 miles, 

 in Rock Creek Park, along Piney Branch, and in the Ana- 

 costia Valley; by rowboat, 12 miles, from Benning, D. C, to 

 Bladensburg, Maryland, and return. Character of country 

 traversed : woodland and thickets, 42 per cent ; fields and 

 roads, 16 per cent; marsh, 21 per cent; and river, 21 per cent. 

 Total distance traveled^ 31 miles. Time in field, 4:00 a. m. 

 to 9 :00 p. m. Total number of species observed, 105 ; indi- 

 viduals, 1840. Harry C. Oberholser. 



11. — Oxon Run, D. C, and Potomac Park, Washington, 



