INTRODUCTION. 



I 



the intellectual heat and light which, like the collision of 

 flint and steel, his grand cabinet has excited in their 

 minds. 



Professor Cleaveland has done a full proportion toward 

 the advancement of mineralogical and geological science. 

 His late publication is a manual of instruction for all who 

 are disposed to learn. In the compilation, he has descri- 

 bed the modern method as it ought to be ; he has been 

 liberal to his cotemporaries, and just to his country. 



Much commendation is due to John G. Bogert, Esq, 

 who has evinced a most commendable and successful 

 zeal both in the collection of specimens, and in the gene- 

 rous use he makes of them. He deserves to be ranked 

 among the first friends and ablest promoters of this kind 

 of knowledge. 



His Excellency Dewitt Clinton has contributed greatly 

 toward the promotion of this as well as other sciences. A 

 lover alike of sound learning and of those who excel in it, 

 he has proved himself both an admirer and a proficient, 

 By exertions of his own and of the meritorious men be 

 has patronized, he has accumulated a body of important 

 facts and intelligence. He has proved himself as capable 

 of philosophizing as of collecting. By the brightness of 

 his lamp, his neighbour sees no less comfortably than 

 himself. 



Many gentlemen might bq mentioned, for the aid they 

 have afforded to this branch of science, such as Schaef- 

 fer, Steinhauer, Haines, Griscom, Akerly, Silliman, Coo- 

 per, Beck, Conrad, Low, Seybert, Mease, Godon, We- 

 therall, Collins, Nuttal, Bradbury, and more than I can 

 enumerate at this time. Suffice it, to observe, that with- 



