Albuquerque morning journal., 1922-11-28

of an inferior grade and hence
lumber will not sell for as high a
price as that which is free from
large knots. Such lumber brings
on the retail market about three
times as much as the lower grade
with their many knots. All of the
new wood added to the bole of the
tree, after all of its branches are
shed, makes clear humber since the
presence OF the branches is what
produces knots. The earlier in the
life of tree that its lower branch
es are shed, the sooner will clear
lumber be produced on that por-
tion of the tree: hence any factor
or agency which causes the early
pruning Of the lower branches on
trees is beneficial to lumbermen
For this reason, the pruning fun
gus on the western yellow pine ia
to be considered a valuable asset
to the western pine lumberman."
Leopold's Paper
Leopold's paper on Erosion as
a Menace to the Social and Econ
omic Future of the Southwest" !"
brought out the fact that arid re-
gions subject to neglect and mis-
use, have not the 'recuperative
powers" that wetter regions have,
giving as an illustration the con-
dition of present-day Palestine.
He also stated that over-grazing
of western lands would mean a
deterioration of land that would
not only cost the government vast
sums of money, but would mean
that reclaimed land would be sub
stituted for country that is far
more valuable and richer in re-
sources. "These losses can not, in
any proper sense, be replaced by
artificial reclamation Of lands else
where" said Mr.. Leopold, because
the irrigable land in the south
west is all needed for future de-
velopment and to reduce the total
possible irrigable area is to reduce
the total possible ultimate devel-
opment, already limited by nature.
THE southwest and other semi
arid countries can not be used by
man without serious damage to its
ultimate capacity for supporting
man." Mr. Leopold said in conclu-
sion. This will necessitate gov
ernment ownership of some nat
ural resources, and government
regulation of the use of all others
The use of the land, the funda.
mental resource, must be put un-
der government regulation"
Mr.. Marshs paper brought out
a vital fact in the explanation Of
how New MeXico's timber supply,
IL properly controlled and handled,
will some day be one of the most
important sources of lumber in the
nation. Mr.. Marsh stated that
New Mexico has at present 3d.
00O,000,000 feet of available tim
Der which, IL properly apportion-
ed, would yield an annual output
of OO,O00,0o0 feet for an indefi-
mite period.
Engineer Speaks
at the present time" said Dean
Thomas r. Eyre, of the university,
"the chemist is one of the most
important men in the big power
plants" Leading chemists have
found by pulverizing coal that an
increase In surface area of several
hundred times, is attained" said
Dean Eyre. THE largest use OF
lpulverized fuel Is in the Portland
cement kiln. The steel and cop
per industries are rapidly changing
from producer gas to pulverized
coal for use in any metallurgical
furnaces. About ten million tons
Of coal are used annually in the
pulverized state in this country"
Scientific Tests in Education
DR.. Raugnt OF the university,
showed by means of gratis, how
tests of intelligence and achieve
ment in school had been made
among university students. These,
he said, were not made from one
but several tests: and while he ad-
mitted that intelligence tests did
not always give a true prediction,
stated they provided a fairly de-
pendable scheme for studying sell
entifically the correlation of In
telligence and school grades.
Superintendent Donley, Of the
Carlsbad schools, who has been
conducting scientific tests in the
Carlsbad system and whose inves-
tlgations have extended through
out the state, gave some valuable
statistics gained from investigation
of conditions.
That the student who attempts
to make scientific expositions is
either not thoroughly acquainted
with his subject or has not defi-
mite aim to strive for, was given
by DR.. HessIer as the -hief reason
for the failure to definitely report
the result of scientific expert
ments. This he said could be
overcome by making the asslgn-
ments to the student more definite.
Today's program:
Presidential Address
Future Motor Fuels, John d.
Clark, Phi. D.. dean OF graduate
school and professor OF chemis-
try, state university.
AnthropoIogy
Zuni Fettishes, Fl. F. Robinson,
supervising engineer, Indian field
service, albuquerque.
Pre-Pueblo Cultures of the
Southwest, Kenneth M. Chapman,
associate in art. School of Ameri-
can Research, Santa Fe.
Some Native Phases OF Native
Southwestern Arts, Wesley Brad
field, M. A., associate in archaeolo-
gy, School Of American Research,
Santa Fe.
Historical Sciences
Geographical Changes in New
Mexico Population Since 1916,
Paul A. b. Walter, secretary Of the