Cincinnati Society of Natural History,

ROOM 48 COLLEGE BUILDING,

Cincinnati, .................................... 187

To

Gentlemen:

Our Society is desirous of making
exchanges in all of its departments. For further
information, address, R. B. Moore, Custodian,
J. C. Shroyer, Librarian, or any of the following Curators:

<table><tr><td>Mineralogy,</td><td>R. M. BYRNES,</td></tr><tr><td>Palæontology,</td><td>J. W. HALL, JR.,</td></tr><tr><td>Conchology,</td><td>A. G. WETHERBY,</td></tr><tr><td>Entomology,</td><td>J. W. SHORTEN,</td></tr><tr><td>Archæology,</td><td>H. H. HILL,</td></tr><tr><td>Ornithology,</td><td>CHARLES DURY.</td></tr><tr><td>Ichthyology,</td><td>D. S. YOUNG,</td></tr><tr><td>Comparative Anatomy,</td><td>A. J. HOWE,</td></tr><tr><td>Botany,</td><td>DAVIS L. JAMES.</td></tr></table>

FOSSIL HORN CORES

OF THE

BISON LATIFRONS (LEIDY).

Found in excavating for a bridge pier at Straight Creek, Adams county, Ohio, in 1869, in coarse gravel, about fifteen feet below the surface. They each have a portion of the skull attached, one portion showing a part of the brain cavity.

<table><tr><td>Length of right horn,</td><td>2 feet, 8 inches,</td></tr><tr><td>Length of left horn,</td><td>2 " 7 "</td></tr><tr><td>Width of forehead,</td><td>1 " 4 "</td></tr><tr><td>Entire length of curvature,</td><td>6 " 8 "</td></tr><tr><td>Spread of horns to points in direct line,</td><td>6 " 1 "</td></tr><tr><td>Circumference at base,</td><td>20½ "</td></tr><tr><td>10 inches from base,</td><td>16 "</td></tr><tr><td>16 " " "</td><td>14 "</td></tr><tr><td>24 " " "</td><td>9½ "</td></tr><tr><td>Weight in 1875, 32 and 34 lbs.,</td><td>66 lbs.</td></tr></table>

They are of moderate curvature, deeply corrugated, nearly perfect, good state of preservation, and have been successfully molded in plaster.

The original, also the casts, are the property of the Cincinnati Society of Natural History, Room 48 College Building, Walnut st., Cincinnati.

The casts are offered to other Societies in exchange for Books or Specimens of Natural History.