REPORT OF NEW JERSEY STATE MUSEUM. 
THE HAMBUKS SAN D-P1.A IX AND K.UIK AREA. 
These two models represent without exaggeration the form of 
the surface and the glacial deposits of a region southwest of 
Hamburg, Sussex county, New Jersey. At one stage in tho 
melting of the great ice-sheet which formerly covered Northern 
New Jersey, a lake covered the southern half of this area, while 
the ice covered the northern portion. Streams dewing both from 
beneath and on top of the ice, deposited their load of gravel and 
sand in the lake and built a broad, flat-topped delta plain, with 
steep slopes and lobate front. The top of the plain represents the 
surface level of the lake. Beneath the edge of the ice, which 
at this time stood at the north margin of the plain, the streams 
were also depositing sand and gravel in the caverns, tunnels and 
other irregular openings in the marginal portion of the glacier. 
These gravel hills are called kames. Their irregular hummocky 
surface is in marked contrast to the flat-top of the delta. Some 
of the kames south of Hamburg form hills over 100 feet high and 
are the largest in the State. 
Besides the deposits made by tho water from the melting ice, 
the glacier itself deposited a sheet of bowldery, stony clay (till) 
of variable thickness over the surface. The underlying rock 
frequently projects through the coating of till. East of Franklin 
there is an elongate, oval-shaped hill apparently entirely of till. 
This is called a drunlin. 
Maps .—On the walls of the Museum are copies of many old 
and rare maps of the State, as well as some of recent, date issued 
by the Survey. One of these latter, the Forestry Map, shows 
accurately the distribution of the timber lands of the State. 
Transparencies .—Several transparencies representing choice 
bits of scenery of the State adorn the windows. These were 
formerly on exhibition at Buffalo. 
