380 = T. OC. Chamberlin—Hillocks of angular Gravel 
recessional moraines, and all forms of peripheral ridging, (6) 
with transverse crevasses, and (c) with marginal drainage. By 
marginal drainage I mean either that which was intimately as- 
sociated with the ice-margin, or was essentially limited in its 
action as a genetic agency to the periphery of the glacier. The 
waters may have had their ulterior origin back from the mar- 
gin, either upon or beneath the ice, and, of course, they flowed 
away from it to the sea, but their efficiency in constructing 
gravel hills was essentially peripheral. 
If correlated with rock topography, it may be observed as a 
broad and somewhat loose generalization that the first class 
usually conform, with measurable divergences, to the general 
rock slopes, while the second are disposed in much negligence 
of associated rock contours, and often stand in seeming inde- 
pendence if not antagonism to them. If, however, the study of 
their relationships be carried into detail, the subjacent topo- 
graphy will be found more or less influential in determining 
not exceeding ten or twelve feet in height to more sharply 
Geol. of Wise., vol. ii, pages 207 to 211—Le Kettle moraine et les mouvernents 
des glaciers qui lui ont donnés naissance. Comptes Rendus, Congrés Internationa’ 
de Géologie, Paris, 1878.—Extent ignificance of the Wisc. Kettle Moraine, 
Trans. Wise. Acad. Sci., 1876-77. : 
