BIRD’S-NESTING 107 
warbler and the blue-winged warbler, more closely 
resembling the golden-winged. When it takes after 
the blue-winged, it is called the Lawrence warbler. 
This specimen we studied feather by feather for over 
half an hour at short range, and the experts of the 
party pronounced it beyond peradventure a Brew- 
ster’s warbler, — a bird not seen often in a lifetime. 
It was solid blue on the back, pearly white under- 
neath, and showed white tail-feathers, together with 
a greenish-yellow patch on the very crown of its head. 
It had two broad yellow wing-bars, one large and the 
other small, and its white throat, innocent of any 
black mark, was the field-mark by which it could be 
told from either of its parents or from its half-brother 
the Lawrence. 
It was the Artist who made the last discovery of 
the day. Near the crest of the mountain, he gave a 
piercing cry and announced that he had discovered 
an Indian cobra. We all hastened to his rescue, and 
saw a fearsome sight. Coiled in front of him, hissed 
and struck a bloated, swollen snake, with flattened 
head and up-turned snout. It was none other than 
the American puff-adder, which ought to be called 
the bluff adder since, in spite of its threats, it is never 
known to bite, and is really a harmless and gentle 
snake. 
The last thing the writer can remember of that trip 
was hearing, as he fell asleep, the Architect tell the 
Banker of the time he found two loon’s eggs, which a 
man had discovered on the top of a muskrat’s house 
and put under one of his hens to hatch, 
