MAR 2- 1907 
The Ohio £J\£ataralist, 
PUBLISHED BY 
The Biological Club of the Ohio State University. 
Volume VII. FEBRUARY, 1907. No. 4. 
TABLE OF CONTENTS 
Morse— The Columbus Ester. 63 
Herms—N otes on a Sandusky Bay Shrimp. Palaemonetes exilipes Stimpson. . 73 
Selby— On the Occurrence of Phytophthora infestans Mont, and Plasmopora cubensis 
(B. & C.) Humph, in Ohio. 79 
Sterki —Some Notes on Collecting Mollusca in Ohio during 1906. 86 
Frank— Meeting of the Biological Club. 88 
THE COLUMBUS ESKER. 
William Clifford Morse. 
Terminology. 
The terms employed in this discussion have been used in 
various senses by different writers. Their application has been 
gradually restricted by a series of steps which the author will 
trace at the outset. Wright ( l ), in his chapter on kames, savs: 
“The word ‘kame’ has already been defined as a local term ap¬ 
plied to the sharp, gravel ridges which abound in various parts 
of Scotland, and which in Ireland are called ‘eskers’, and in 
Sweden ‘osars’. As Geikie’s work on 'The Great Ice Age’ has 
given currency to the Scotch name, and as the word has been 
adopted by those who have investigated this class of formations 
most fully in America, it seems best to continue its use, though 
either of the names is more euphonious.” 
Wright’s subsequent application of this term (kame) is to 
Xorth American formations, which Geikie would have, at least 
in his third edition of “The Great Ice Age". ( 2 ) differentiated 
as osars and kames, if not by further distinctions. The former 
are defined by him as “ridges of gravel, etc., which coincide in 
direction with the trend of the glaciation—they follow, in short, 
the path of the ice sheet”; the latter as “Kames of gravel, sand, 
etc., which are typically developed in the Lowlands opposite 
the mouths of mountain-valleys, and which, when followed up 
such valleys, pass eventually into ordinary morainic accumula¬ 
tions.” Xot only does Geikie clearly distinguish between osar or 
esker on the one hand and kames on the other, but Chamberlin ( 3 ) 
LIBRAI 
NEW Y( 
BOTANH 
GARDE 
1. Wright, G. Frederick. The Ice Age of North America, p. 297. 1S91. 
2. Geikie. Great Ice Age, Third ed., p. 205, 1S94. 
3. Ibid, p. 745. 
