ii.~)(; The American Geologist. October, 1893 
to illustrate the mode of making coke. In the model the 
coke-ovens are apparently alight, each having ;i small ^as jet 
burning over it. 
Worthy of especial not ice both by the geologist and the well- 
driller is ail admirable section from Olean, N. Y., to Massillon. 
()., exhibited by the Standard Oil Co., and compiled from the 
records of numerous wells sunk through the region. Its hori- 
zontal scale is three inches to a mile, and its vertical scale is 
one inch to a hundred feet. Differences of opinion may exist 
among geologists regarding the details of parts of the corre- 
lation of strata in this section, but no one can study it with- 
out learning some of the geological lessons which it can teach. 
The capricious distribution of the oil-sands is a very striking 
object lesson to the too confident adventurer, and an evident 
explanation, needing itself no interpretation, of the uncer- 
tainty of the results of drilling in unexplored territory. 
The section also illustrates the well established doctrine of 
the increasing sandiness of the deposits eastward, indicating 
that the material was brought in from that direction. 
The relief map of New Jersey with a horizontal scale of 
one inch to the mile possesses a peculiar feature in being con- 
structed on a varying vertical scale. The first 200 feet of 
elevation are represented Iry an inch to 400 feet, the next 300 
feet by one inch to 600 feet, and all above that line by one 
inch for every 1,000 feet. The intention obviously is to re- 
duce the objection against too large a vertical scale without at 
the same time rendering the map so fiat as to lack relief. It 
is a device worth consideration. 
In the anthropological department are some maps bearing 
on the much mooted question of the day and the hour — gla- 
cial man.' Prof. G. F. Wright, of Oberlin, shows in his 
exhibit two maps illustrating the glacial phenomena of Ohio, 
and Mr. Moorehead has a detailed map of Fort Ancient, and of 
the Hopewell mounds, in which some of his most recent investi- 
gations have been carried on, and where much of his exhib- 
ited material was found. He has also two models of graves 
which he opened, in one of which a skeleton still remains. 
We can only mention the numerous models of some of the 
most important and interesting mounds, such as (lark's work 
■on Paint creek, Ross county, Ohio, and the group in Anderson 
