No.50.1 
273 
Auburn, June 14, 1839. 
Dear Sir : 
I have just received your letter of the 5th mst. I see no 
objection to your furnishing Mr. Mclntyre and his associates the inform- 
ation mentioned, if you can do it vv^ithout material diversion from the 
duties of the geological survey. Nor does it seem to me important 
that they shall be restricted to the publicity they may desire to make 
of the facts to be obtained by them from you. The greatest public 
good YfiW result from the voidest dissemination of the knowledge acquir- 
ed by the survey. 
I am very respectfully, 
Your obedient servant, 
WM. H. SEWARD. 
To E. Emmons, Esq. at Clintonville. 
ORES OF NEWCOMB. 
The following account of the iron ores in the town of Newcomb, 
Essex county, New-York, the author has made as full as time and cir- 
cumstances would permit. In the preparation of it, it has been thought 
proper to introduce a few general considerations relative to the geo- 
logy of this section of country, embracing in them those theoretical 
views which are intimately connected with practical points in reference 
to these deposits. Without some doctrinal statements of this kind, the 
report would be incomplete in itself, and less useful to those persons 
foi whom it is intended. 
It may be thought by some, that too much minuteness of detail has 
been observed in the description of individual veins, and that the whole, 
or all that is essential, might have been embraced in one general account 
with equal advantage, and thereby have avoided disagreeable repetition. 
This course, it is true, might have been adopted, and the report would 
have presented a more compact form ; still, a full account of each vein 
seemed necessary and important to a correct understanding of the whole 
subject. Besides, the reader Avill be enabled to appreciate the value 
and amount of those rich repositories of ore, and the peculiar advanta- 
ges which this section of country offers, for the manufacture of iron, 
above all others at present known. In this last assertion it may be thought 
[Assembly, No. 50.] 35 
