114 
Rhyacophilas solitarius. 
Middlesex County, Mass. 
1868. 
Sept.21, 
One flying. 
1869, 
May 23. 
One. 
1871. 
May 15, 
One, 
Oct, 4. 
Three in the pond-hole near Pairhaven Bay, Concord 
1875. 
May 14, 
Shot one on Rock Meadow, Belmont, 
• 17. 
Three on Rock Meadow, Belmont, 
Aug. 9, 
One in the Fresh Pond swamps—the first. 
• 
o 
CO 
Five feeding in the marshy pool at the head of 
Vassal Lane. All were young birds in thin flesh. 
Sept. 7, 
One in the Fresh Pond swamps. 
1876. 
May 11, 
General arrival (Cambridge). 
