22 
Mr. R. Hall on the 
and in it were tunnels, always beginning under a small 
cascade, and running back for a distance varying from 5 
to 8 feet. In one instance I dug 11 feet to reach the 
egg. The holes are in groups of from three to six, judging 
from four colonies examined by myself. At the end of a 
crooked tunnel is a semi-spherical cavity with a flat floor 
covered with water, and in the middle of this space is a 
raised circular bed of rootlets, saucer-like, inverted, with an 
indent just above the water-level. In this nest lies the single 
egg, measuring about 3*4 by 2*2 inches. The diameter of 
one cavity surrounding the nest proper was 22 inches one 
way and 19 inches another, the height 6 inches; and of the 
nest proper the diameter was 13 inches. Broken sprigs 
of grass in water at the tunnel entrance are indicative of 
occupancy. Dr. Kidder obtained a young one on September 
15th, and an egg on December 16th. 
Early in February I secured fresh eggs, but found that by 
January 27th most of the eggs were much incubated, while 
some nests contained young. In three examples of the 
nestling the down was uniform slate-brown on the throat. 
Tiie sitting birds in three cases had white chins only, while 
a fourth had white blotches on the cheeks. Throughout our 
sojourn on or near the island I did not see a typical Spectacled 
Petrel. I may mention that, like Dr. Kidder, I saw birds 
flying about without any of the white on the chin which is 
characteristic of this species. I distinctly observed one (as it 
settled to pick uj3 scraps of seal-meat near the ship) which 
looked exactly like M. parkinsoni of the New Zealand seas, 
a species which has not been hitherto recognized as a 
frequenter of Kerguelen. 
-/Priofinus cinereus (Gm.)j Salvin, Cat. B. xxv. p. 390. 
Specimens were not obtained, but these birds often wheeled 
astern of the brig ; more after the style of the Albatross than 
that of the smaller Petrels. One, when we were stopping 
from full speed to pick up something from the water, showed 
blotches of yellow on the under webs of the toes, which 
were rapidly opened and shut, but otherwise it presented 
the recognized characters of the Great Grey Petrel. 
