54 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 60 
done successfully and the slabs shipped safely to the National 
Museum, where they are now being prepared for exhibition in the 
hall of paleontology. 
FIELD-STUDIES ALONG THE PATUXENT AND POTOMAC RIVERS, 
CHESAPEAKE BAY, AND THE, NORTH GAR OEINACOAST 
Collections of fishes for the National Museum were made during 
1912 in the Potomac River and its tributaries from Plummer’s 
Island to Mattawoman Creek, in branches tributary to the Patuxent 
Fic. 58.—Power launch VYorkspit, and view across Mattawoman Creek, 
Maryland, one mile above Indian Head docks, a good collecting ground. 
Photograph by Bean and Weed. 
River, and in Chesapeake Bay several miles south of Chesapeake 
Beach. They were made without expense to the Museum, for the 
most part by members of the Museum scientific staff while on leave 
of absence, and were mainly for addition to the exhibition series. 
On a one day excursion to Mattawoman Creek, and nearby points 
on the Potomac, something like 450 specimens representing 26 spe- 
cies were collected. Included among these are specimens of black 
bass, white and yellow perch, darters, roach, shiners, silver sides, 
herring, young shad, mummychogss (bull or pike minnows), “ spawn- 
eaters,” ‘smelt’ of the Potomac, common eels, catfish, little ‘“ mad 
toms,’ American sole or hog-choakers, sunfish, or ‘‘ tobacco-boxes,” 
ee 
