440 
CONCLUSION. 
In the prospectus of this work, the expectation was expressed 
that each Number would contain from 64 to 80 pages; that as 
many as four Numbers might be issued within the year, and 
engravings were promised for such subjects as might require 
them. 
The Numbers published, have actually contained from 104 
to 132 pages, the four have been issued within a period of ten 
months, and twelve copper-plate engravings and several wood- 
cuts, illustrate the present volume. 
Of the subjects proposed in the plan of the work, our pages 
contain notices, more or less extensive, of Geology, Mineralogy, 
Botany, Zoology, Chemistry, Natural Philosophy, Mathematics, 
Useful Arts, Fine Arts, Inventions, Reviews, Biography, an 
Intelligence. How far then we have redeemed our pledge, 
we leave it for our readers to decide. 
In the commencement of an enterprise, for the first time 
attempted in this country, an enterprise arduous in its nature 
and uncertain in its issue, it will not be doubted that — 
able solicitude was eee ce 
furnishing a Journal to record thelr ceedings, will, in our 
view, not only have a direct influence in promoting the honor 
and prosperity of the nation as connected with its physical in- 
terests, but will also tend in no small degree to nourisa an 
enlarged patriotism, by winning the public mind from the odi- 
ous asperities of party. That entire success will attend our 
efforts, it would perhaps be presumptuous to expect, but we 
trust that the interesting previous question, whether such a 
work can be adequately sustained, by appropriate materials, 
may be considered as now decided. The support which we 
have received, and for which we are deeply grateful, has been 
far beyond our most sanguine hopes, and has caused us to dis- 
pense with no small portion of those less important efforts of 
our own, with which we were prepared to succor our infant 
undertaking. 
