THE 
JOURNAL OF GEOLOGY 
A Kel VAN A TOOy, 
REPORT OF A SPECIAL COMMITTEE ON THE COR- 
RELATION OF THE PRE-CAMBRIAN ROCKS OF 
THE ADIRONDACK MOUNTAINS, THE ‘ ORIGINAL 
LAURENTIAN AREA” OF CANADA, AND EASTERN 
ONTARIO 
To C. Willard Hayes, Charles R. Van Hise, Albert; P. Low and 
Frank D. Adams, General International Committee on Geological 
Nomenclature, Representing the Geological Surveys of the United 
States and Canada: 
I. INTRODUCTION 
At a meeting of the International Committee on Geological No- 
menclature, representing the Geological Surveys of the United States 
and Canada, held at Ottawa, Canada, on December 31, 1905, it 
was decided that the subcommittee on the correlation of the pre- 
Cambrian rocks of the Adirondack Mountains, the original Lauren- 
tian area and of eastern Ontario, consisting of President C. R. Van 
Hise and Professor Frank D. Adams, which had been appointed at 
the first meeting of the committee, held in Washington on January 
2, 1903, should be enlarged by the addition of Professor A. P. Coleman 
and Professor J. F. Kemp, and that Dr. J. M. Clarke, State Geologist 
of New York, should be invited to appoint a representative on this 
committee. Dr. Clarke was subsequently consulted, and appointed 
Professor H. P. Cushing as representative of the Geological Survey 
of the State of New York. Dr. Robert Bell was also invited to join 
the subcommittee. On July 4, when the committee assembled to 
begin its work, Dr. Bell, being in Europe, was unable to take part 
Vol. XV, No. 3 Igt 
