146 BULLETIN OF WISCONSIN NATURAL HISTORY SOCIETY. VOL. 2 NO. 3. 
this part of the Range is Government Hill, south of Delafield, 
the top of which is 368 feet over Lake Xagawicka, and 669 feet 
above Lake Michigan. Accompanying the moraine, and lying in 
part within its very center, are the numerous lakes of sizes vary- 
ing from a few acres to several square miles, which have given 
this region fame as a summer resort. Another marked physio- 
graphical feature are the many broad, level depressions, most of 
them evidently old lake beds. Usually there is a small river or 
brook of sluggish current flowing through them. Some areas of 
this kind have been turned into tilled fields, but the larger portion 
is occupied by rather moist meadows, which in many places be- 
come pronounced sedge marshes. 
The forest of that part of this district lying east of the Kettle 
Range is on the whole similar to that of western Milwaukee 
County (see Bull. Wis. Natural Hist. Soc, January, 1902), except 
that as you proceed westward the areas in which hard maple, bass- 
wood and associated trees prevail, become rarer, and the oaks cor- 
respondingly more numerous. In other words, the mesophytic 
forest type, with its deep and rich humus and dense shade, gives 
way to the hemixerophytic oak forest, with its lighter shade and 
comparatively thin layer of humus. In the moist depressions, a 
hemi-hydrophytic association, in which the American elm is the 
most conspicuous member, appears just as in Mihvaukee County, 
while portions of the larger bottoms are covered with tamarack 
swamps, although much of this class of land has been converted 
into tilled fields. 
Within the oak forests, the burr oak, the most xerophytic of 
the group, becomes decidedly more numerous the farther west one 
goes. 
While the eastern half of the district may still fairly be classed 
with Chamberlain's Oak and Maple Group (See T. C. Chamber- 
lain, Report of Wisconsin Geological Survey, Vol. II., Chapter 
III.), the moment one has reached the Kettle Range, he is de- 
cidedly in the region of oak forests. Maple, basswood, butternut 
and white ash are practically absent. With the oaks (Qu. alba, 
macro car pa, obftisiloba, rubra and rchitina) are found Hicoria 
ovafa Britton and occasionally H. glabra B riff on. Prunus serotina 
is not uncommon, and sometimes grows to great dimensions. 
Popiiliis frcmuloidcs and to a less degree P. grandidcnfafa are not 
at all infrequent, although they are more characteristic of the 
brush lands to be described forthwith. In tree-form, these two 
species seem to prefer situations that are not too dry, as for in- 
stance at the bottom of a slope, the higher portions of which a^e 
left in the possession of the oaks. 
In the Kettle Range the traveler coming from Lake Michigan 
