328 The American Geologist. Documber, ibiy 
York in 1843," \vhicli is still considered an authority on this 
subject. 
The author at first undertook to make a geological map 
with sections for his own amusement and study, to which he 
added historical facts, anecdotes and reminiscences of the city, 
so that the book might be interesting to the general reader, 
and "might induce some to read and become interested in the 
greatest of all sciences." 
The book contains a geological history of New York city, 
with map, section of the palisades, section of Staten island, 
section at Stony Point on the Hudson, section of the rocks of 
Rhode Island with one of Niagara Falls, catalogue of minerals 
found in place on New York island, &c., in all 114 pages and 9 
plates. 
In Fairchild's history of the Academy of Sciences of New 
York, pp. 90-91. in some personal reminiscences by Prof. G. 
H. Redfield, I find the following: that "Issachar Cozzens was 
an early member of the lyceum, having been elected in 1822; 
at the time I entered, I think he must have been living out of 
ihe city, but afterwards he became a regular attendant, and 
after Dr. Gray went away, he was put in charge of the build- 
ing, and for awhile towards the last of our occupancy I think 
he occupied one of the stores and sold minerals, fossils and 
shells. He was quite an old man, with venerable white hair, 
and I think he must have died poor." 
Cozzens also published an article on the fossils of the falls 
of the Ohio in the American Journal of Science and Arts, but 
here at San Juan, Puerto Rico, I cannot give a reference to it. 
The value of such a man's life and labors cannot be gauged 
simply by his publications. We must also take into account 
at this early stage of the science of geology the personal help 
and encouragement which he gave to others, and such services 
were at all times rendered frankly by Issachar Cozzens, whose 
genial nature and interest in the study of geology made it more 
pleasant and encouraged others, in these early days. 
