—t 
long diameter exceeds thirteen inches of our English 
measure, its short diameter eight, and its long circum- 
ference thirty-three inches. Its capacity is thought to 
be equal to eighteen liquid pints, or to be six times 
greater than that of the largest egg known to us (the 
ostrich), although but twice its length. It is said to 
be equal to a hundred and forty-eight hen eggs. ‘The 
ellipsoid egg has its longest diameter somewhat less 
than that of the ovoid; its short diameter nearly 
equals that of the other egg, being more than eight 
inches. The third egg, although broken, has been 
very useful to science, by displaying the thickness of 
the shell, which is about one-tenth of an inch. 
The bones, of which I have received the casts, are 
three in number, and of great interest. One of them 
is a characteristic fragment of the upper part of a 
fibula; the other two, still more interesting, as enabling 
us to determine the class and genus of the animal to 
which they belong, exhibit the extremities of the right 
and left tarso-metatarsal bones. The former is some- 
what broken; the latter is nearly perfect, and exhibits 
the triple division of the inferior extremity of the bone 
into the three trochlez or pulley-shaped processes of 
the struthious birds. It might be mistaken for a bone 
of the great Dinornis, but is distinguished from this 
by the flatness of the portion above the trochlez. Still 
