New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1863-07-09

same time, the variety Of clonds with which onr
SKIES are diveri6ed. To my mind, neither Spanish
nor Italian skies no bright and cloudess, can COM
pare with ours, forever shifting In their tns and at
" cOud-land.'
The volume contains several interesting NOR
ceauI of the literary history Of the times, e..
pecially his correspondence with Mr.. Prescott in
regard to surrendering his plan of writing the
history of the conquest Of Mexico, and an &C.
count Of various skirmishes with Mr.. Leggstt
aud other newspaper assailants.
THE NATURAL LAWS OF HusBANDRY. By Josrr.
vos LiKBIe Edited By JoHs BLyTH M. D. limo. pp.
ssI " Applston GO.
Professor Lebig in this volume places the import
anes OF agricultural science on a sound basia He
admits that ~ immense host Of farmers, who have
not the remotest conception Of the nutrition of plants,
or the composition Of manures, apply guano, bone
eGrth, and other ferlzog substances to their fields
with as much effect and even much skill as those
who possess such Information. A profitable system
Of agricultors may be conducted by person u very
limited intelligence. Even the most ignorant man
may be fitted for the purpose, by the statement
sffacts to him, without any idea Of their mode II
operation. But rational pursuit Of agriculture
which, with the greatest economy of capital and
labor, obtain the largest possible crops from u
fed for series Of years without exhaustion
qures large compass 0, knowledge To no business,
psrbaps ere the results Of observation, experience,
sad research more necessary. The rational agricul'
turis must not merely know all tie facts with which
tho erate peasant is acquainted, but be must alss
be able to appreciate them at their proper value. Hs
must know the reason OF bis proceedings, must be
able 70 anticipate their effect on lis land, and
comprehend the law Of their operation. In short,
bs mus, be an intelligent observing, sagacious man,
with his eyes wide open and bis brain always on
tie alert, and not "a half aid half creature who
knows DO more about his actions than a tomcat,
with lust skill enough to catch gold fish in basin OK
water" Ii is DOW sixteen years since the sixth edi.
ton of Professor Liebies great work on agricultu-
raj chemistry was published, and during that inter-
val little progress, in his opinion, has been made
toward the removal Of the obstacles, which oppose
the introduction Of scientific teaching into the do
main Of PRACTICAL agriculture. The chef Of these 10
tho contest which has always existed between
science and practice. In the present work, tbs
Author brings forward the conclusions Of his mort
without q certain feelin. OF encouragement for.
the conviction that he will address himself N VAIN
b. the existing generation Of sgrlculturists. lie
builds his hopes only Oh the younger men who enter
upon practice with different preparation from tAeii
fathers. The main theory Of the work Is tos Sane
which wss Bel frh in lis former treatise, namely,
ths; tie food Of plAIis is OF inorganic nature, AID
that each OF the elements OF food must be present IL
q roll for tue successful cultivation Of plant Bat
III. views Of the manner in which plants take up
their food from their soil have been modified by sub
,equsn. discoveries. His discussions, accordingly.
now relate, in great degree, 10 Tie absorbing pow
ers of the soil and the ramiGeation Of the roots Of
plants. Whatever the vaae Of tie work to the
practical farmer, it presents series Of singuary
interesting expositiOns to the student Of ase9saa
chemistry.