Sixth day - Drive from Concord to Cambridge. Nests of Vireo solitarius et olivaceus and Paparanga rubra. June 24 Clear and very warm. Left Concord at 9.30 A.M. and arrived at Cambridge by 12, Stopped first to examine the Tanager's nest in Lincoln woods which I discovered on the 16th. The Q was sitting and as in the case of the one examined last week fluttered directly down to the ground upon being started off. She had laid the usual complement of eight, which although but 4 days at the outside had chicks all formed. Next visited the Vireo solitarius' nest at Sandy Fond found on the 11th inst. It contained 4 beautiful eggs upon which the S parent was sitting. He allowed me to almost touch him with my hand, then starting off he lit in an oak near by and commenced at once singing most energetically, continuing without intermission during the time that I occupied in picking the eggs etc., nor if I did not see at all. And when I left the grove the S was still singing steadily (See p. 149) A nest of Vireo olivaceus in an oak within ten yards of the S solitarius, I also found nearly completed on the 17th contained 4 eggs incubated 2 or 3 days. A little Nest of Hardy's Fond I came across a S grown with a brood of about a dozen young feeding in the road and stopping the horse suddenly enjoyed a fine opportunity of watching the pretty little fellows. They ran about exactly like so many newly hatched chickens: Don't foursome would find a feed or other