May, 1909.] The Bedford Fauna at Indian Fields, Ky. 5 1 5 
apparently random division of the chromatin in amitosis the 
number of chromosomes in the species studied is constantly four. 
Moreover, in some of the spindles in clusters of nuclei undoubt¬ 
edly formed by amitosis, the same number is clearly shown. The 
bearings of these observations except as they tend to demonstrate 
that amitosis by constriction is a normal process may, however, 
be left for discussion in the fuller paper which is to follow. 
The figures are camera drawings made with 1.5 mm. objective 
and an ocular 12. They are enlarged 2130 times. 
Fig. 1. A large nucleus constricting into a cluster of nine or 
ten daughters. 
Fig. 2. (a) A cluster of daughter nuclei, constriction com¬ 
plete. (b) One of the adjacent parent nuclei of the same cyst. 
Fig. 3. A cluster simliar to Fig. 2, but beginning to give off 
small nuclei by nuclear gemmation. 
Fig. 4. A similar cluster of two daughter nuclei. 
THE BEDFORD FAUNA AT INDIAN FIELDS AND IRVINE, 
KENTUCKY.* 
Aug. F. Foerste. 
The stratigraphic succession of the chief divisions of the 
Waverly in Ohio, in descending order, is: 
6. Logan formation, chiefly sandstones. 
5. Black Hand formation, sandstones, often coarse, and 
locally conglomeratic. 
4. Cuyahoga formation, sandstones and clay shales. 
3. Sunbury formation, fissile black shales. 
2. Berea sandstone, oft'en ripple marked. 
1. Bedford clay shales, locally with sandstones. 
In 1888, Mr. E. O. Ulrich, in the fourth volume of the Bulletin 
of Denison University, identified from the Upper Waverly of 
Ohio sixteen species of bryozoans which occur also in the Keokuk 
of Kentucky, Illinois and Iowa. Of these, eight are found at 
King’s Mountain, Kentucky, in strata identified by Ulrich as 
Keokuk, and two other species are closely related to forms found 
at that locality. From this it is evident that the upper Waverly, 
now known as the Logan formation, is closely related to the 
strata exposed at King’s Mountain, and that both are approx¬ 
imately equivalent to the Keokuk of the Mississippi Valley. 
In a paper read before the Geological Society of America, at 
Baltimore, in 1908, Prof. Stuart Weller expressed the conviction 
that the richly fossiliferous strata exposed at the Button Mold 
* Published by permission of Professor C. J. Norwood, Director of the 
Kentucky Geological Survey. 
