AGRICULTURE. 
375 
report of Professor Rogers to the Legislature of 
New-Jersey. " When we behold," says he, " a 
luxuriant harvest gathered from fields where the 
soil originally was nothing but sand, and find it all 
due to the use of a mineral sparsely disseminated 
in the sandy beach of the oeean, we must look with 
exulting admiration upon the benefits upon vegeta- 
tion conferred by a few scattered granules of this 
unique and peculiar substance. The small amount 
of green sand dispersed through the common sand 
is able, as we behold, to effect immeasurable bene- 
fits, in spite of a great predominance of the other 
material, which we are taught to regard as, by itself, 
so generally prejudicial to fertility. This ought to 
exhibit an encouraging picture to those districts not 
directly within the limits of the marl tract, where 
some of the strata possess the green substance in 
sensible proportion. It expands njost materially 
the limits of the territory wher« marling may be 
introduced, and points to many beds as fertilizing 
which would otherwise be deemed wholly ineffica- 
cious."* We may lay it down as a general rule, 
then, that there is no soil which may not be made 
productive by proper management. For such knowl- 
edge, communicated in the most pleasing style, we 
beg to refer to the work of Judge Buel on Agricul- 
ture, which forms one of the series of Harper's 
School District Library. 
* Mr. Rogers states that land which, previous to the discov- 
ery of the green sand, sold for $2 50 the acre, is now worth 
$37 the acre, in consequence of the pernaanent increase in its 
value from the marl, as marling co^ts but $5 per acre, and other 
manure to produce an equal effect $200. 
