98 THE CAMBRIAN SYSTEM OF STRATA. 
Curator of the Museum, Wm. G. Stevenson, M.D. 
Librarian, : ; : Mr. CHARLES N. ARNOLD. 
NOVEMBER 27, 1888—SIXTY-FIFTH REGULAR MEETING. 
No paper was read, and the meeting was of an informal 
character. 
DECEMBER 18, 1888—SIXTY-SIXTH REGULAR MEETING. 
W. G. Stevenson, chairman pro tem., presiding. 
Charles B. Warring, Ph.D., was elected chairman, vice 
Charles L. Bristol, removed from the city. 
The following resolutions were adopted by the Section: 
Resolved, That the Scientific Section petition the trus- 
tees of Vassar Brothers Institute to appropriate such 
sum of money as may be found necessary to properly 
catalogue the present library. 
Resolved, That the Scientific Section petition the trus- 
teesof Vassar Brothers Institute to purchase for the use 
of the Institute a stereopticon adequate to the demon- 
stration of scientific principles. 
JANUARY 15, 1889—SIXTY-SHEVENTH REGULAR MEETING. 
Charles B. Warring, Ph.D., chairman, presiding ; 
seven members and thirteen guests present. 
The following paper was read by Professor W. B. 
Dwight: 
“THE CAMBRIAN SYSTEM OF STRATA.” 
BY WILLIAM B. DWIGHT. 
A very annoying confusion exists among geologists as 
to the classification and nomenclature of the lower sedi- 
mentary and metamorphosed rocks. Every geological 
field-worker in these strata encounters this difficulty 
48 
