Jan., 1906.] 
Lower Ordovician in Kentucky. 
447 
In all the normal and abnormal flowers the style was of the 
same form except that it was smaller in the defective flowers 
mentioned in No. 1. All the abnormal flowers were found on 
large strong plants, while the flowers on smaller plants growing 
in poorer soil were all normal, although numerous and of fair size, 
Martynia seems to be a plant peculiarly adapted for studies 
in variation and peculiar forms of flowers, and it would be very 
desirable to have some person take up the subject further. 
New Philadelphia. 
CLASSIFICATION AND MAPPING OF THE LOWER ORDO- 
VICIAN IN KENTUCKY.* 
A. M. Miller. 
The paper presented the results of the operations of the New 
Kentucky Geological Survey as they relate to the Lower 
Ordovician. 
Highbridge is accepted from the Richmond Folio as a saits- 
facotrv name for the “Kentucky River Limestones” known in 
the Old Kentucky Survey Reports as Chazy and Birdseye. Camp 
Nelson, Oregon and Tyrone are proposed as names for what 
were formerly known as Chazy, Kentucky River Marble, and 
Birdseye Proper respectively. Lexington is also accepted from 
the Richmond Folio, and is divided in ascending order into 
Curdsville, Logana, Wilmore, Paris and Perryville, the latter 
being Linney’s “Upper Birdseye.” 
Flannagan Chert of the Richmond Folio, as the name for a 
persistent horizon, is dropped. It has been found to truncate 
beds lying in and just above the Upper Paris where there have 
been brought to the surface under the influence of slow atmos- 
pheric weathering. 
Near the summit of the culminating point of the Cincinnati 
Anticline in Central Kentucky (Jessamine Dome) this horizon is 
marked by an abundance of phosphate, in some cases rich 
enough to invite an attempt to exploit for commercial purposes. 
This deposit is identified as the geological equivalent of the 
Mt. Pleasant Phosphate of Tenn. 
Winchester is accepted from the Folio referred to above, as 
the name for the formation coming next above the Lexington, 
and an attempt is made to assign to it more definite limits than 
heretofore. A wave marked crinoidal limestone, carrying in 
northern situations Trinucleus concentricus, is taken as the 
upper limit of the Winchester. The fauna of the Winchester is 
found to possess strong Cincinnatian affinities and is accordingly 
* Abstract of paper read Dec. 2, Cincinnati. Ohio St. Acad, of Sci. 
