12 OHIO STATE ACADEMY OF SCIENCE. 
Geological Survey, which expends an equal sum with the State, 
and undertakes the engraving and printing of the maps entirely 
at its own expense. There was a friendly interest in the progress 
of this important work on the part of the officers and members of 
both houses of the Legislature, but especial credit and thanks 
should be given to Hon. A. G. Comings of Lorain county for his 
constant watchfulness over this item of the appropriation bills. 
The amount of territory surveyed in 1902 was somewhat less 
than that covered in 1901 for various reasons. The Director of 
the United States Geological Survey writes as follows concern- 
ing the recent work :— 
“By request of the State authorities, work during the present 
season was mainly confined to the eastern part of the country, 
so that a systematic and extensive study of the oil, gas and coal 
district might be taken up as soon as possible. The rugged and 
broken character of the topography in that district has made the 
work slow and expensive, but it is believed that the results will 
fully justify the cost in time and money. 
“During the next field season it is expected that work will be 
more generally distributed over the State, and that a much more 
extensive area will be covered.” 
The maps submitted show that seven quadrangles have been 
completed, each measuring a quarter of a degree each way, and 
located as follows :— 
Three quadrangles in Stark, Columbiana, Carroll and Harri- 
son counties, covering the cities of Alliance, Steubenville and 
East Liverpool. 
Three quadrangles in Washington county and crossing into 
West Virginia, covering Marietta and Parkersburg. 
One quadrangle in Franklin and Delaware counties, covering 
Westerville. 
One in Cuyahoga county, covering Berea. 
Besides the seven completed, seven others are partly done and 
will be completed by the end of June next. These are located 
in Carroll, Belmont, Monroe, Noble and Washington counties. 
The primary triangulation, which has to precede other work, 
and which does not show upon the completed maps, has been ex- 
tended over fifteen new quadrangles, mostly in the Hocking river 
region. 
The engraving and final printing in three colors of the maps 
of the areas surveyed has not yet been completed, but a limited 
number of photographic proofs of the areas covered in I9o01 can 
be secured. 
The earnest and well sustained interest of the members of 
the Academy in this undertaking has already been an important 
