166 Association of American Geologists and Naturalists. 
liferous ores found by himself in the State of New York; together 
with some observations in regard to the fissures in rocks. 
Association adjourned to Wednesday, 9 o’clock, A. M. 
In the evening Prof. Silliman delivered a most interesting ad- 
dress on the “ Progress of Geological Science in this country,” 
to the Association, in presence of the public, who had been invi- 
ted to attend. 
Wednesday, April 27th, 9 o’clock, A. M.—Association met pur- _ 
suant to adjournment, Dr. Morton in the chair. A letter was 
read by the secretary from Mr. Richard C. Taylor. 
The constitution, as reported by the committee on the consti- 
tution and by-laws, was then read by the secretary. Articles I, 
IIL, and 1V, were carried with mnentennntes the other indie 
were carried as reported.* 
Resolved, 'That an additional article be prepared by the com- 
mittee, providing for the future alteration or Senne of the 
constitution and by-laws. 
Resolved, That Prof. Silliman we open to publish his ad 
dress' before this Association in the American Journal oi Science 
as one of its articles.t 
After some remarks on the subject of drift, Prof. Wile of- 
fered the following resolution on the subject of drift, which was 
carried. a 
Resolved, That the subject of drift in our country receive still 
farther examination from the committee, and that a farther report 
be made at the next meeting of the Association. Objections to 
the views presented and as it has been treated by geologists in 
general are, that many phenomena are confounded together :: as, 
Ist, the washing up of ridges along the shores of lakes; 2d, those 
of glaciers; 3d, of icebergs; 4th, alluvial beds; 5th, the aceumu- 
lation of bowlders along what were ancient coasts; and 6th and 
7th, pot holes and slickensides. Icebergs do not necessarily act 
upon.rocks when borne along, inasmuch as they are supposed to 
be defended by soft materials, as gravel, sand, and mud; and 
' that they explain merely the distribution of bowlders, and their 
peculiar movements when grounded are not likely to form: paral- 
el eee or Sratches. The theory of an —— of ice 
‘ccalaaiiei a tee 
he 
wie bad Bs amin 
= stitution will be found under Tuesday’s: proceedings. 
— hin sddrese il orm the leading article in our next number.—Eps. 
