REPORT. 



to THE HONORABLE THE REGENTS OF THE UNIVERSITY. 

 Gentlemen : 



On the 2d of June, 1836, I was appointed by Governor Marcy, Mi- 

 neralogist of the Geological Survey of the State, and was entrusted 

 with that part of the work " which relates to an examination, a scien- 

 tific description, and a chemical analysis of its soils and minerals." 



In the discharge of the duty thus assigned to me, I from year to year 

 visited the most important mineral localities in the State, collected many 

 suites of specimens for the General Cabinet and for distribution to the sev- 

 eral colleges, and devoted the rest of my time to arranging the materials 

 collected, and to the analysis of such rare and useful products as seemed 

 worthy of particular examination. At the close of the year 1842, the 

 final report of the results of my investigations, under the title of the 

 "Mineralogy of New-York, was made to Governor Sewaed ; five annual 

 reports having been previously presented to the Legislature. 



Although since the publication of the Mineralogy in 1842, my con- 

 nection with the survey of the State has ceased,! have still endeavored 

 to keep pace with the progress of this department of science. The 

 additions which I have thus been able to make to the former report are 

 so considerable, that I am induced to offer them to the Regents as a 

 supplement to that work. I consider it as a most fortunate circumstance 

 that the preservation and increase of the invaluable State Cabinet are 

 placed in charge of a Board who duly appreciate the importance of 

 Science, in all its multifarious departments. 



I have only further to say, that the arrangement of the following no- 

 tices is the same as that followed in the Mineralogy of New- York. 



Your obedient servant, 



LEWIS C. BECK. 



RXTTGEBs CoLLEGBj December, 1849. 



