Name:  Gray Limestone (Birdseye Limestone)

Geologic Name:  Lowville Limestone

Reference:  Buddington, A.F. and Ruedemann, Rudolf, Geology and mineral
resources of the Hammond, Antwerp and Lowville quadrangles: New York
State Mus. Bull. 296, p. 183-188, 190-193, 1934.

Microscopic characters:  The rock is composed chiefly of an aggregate of 
calcite so fine that it does not affect polarized light.  In it are network patches
and ares of coarsely crystalline calcite that probably represent the remains 
of organic forms.