Rock Island Argus. (Rock Island, Ill.) 1893-1920, 1910-09-17
KNOWING TREES
BY THEIR LEAVES
J. II. Paarman Of Davenport
Academy of Science Speaks
at Augustana College.
TELLS OF SO SPECIMENS
Various Ways In Which One Can
Study the Different Classifica-
ttons-Seniors Organize.

How to Know Trees by Their
Leaves was the subject of an inter
esting lecture by ]. H. Paarman, cura-
tor of the Davenport Academy Of
Sciences, delivered last evening at a
meeting of the Augustana Callege
Science club. Mr. Paarman has, dur
ing the past few years, devoted great
deal Of his time to a study Of trees of
this vicinity, and In the course of his
lecture he exhibited and described
more than so specimens from trees of
the three cities and immediate vi
cinity.
There are several ways in which one
can study trees, said Mr.. Paarman.
We can study them from the stand
point of the artist, who views their
variegated forms, their changing col
ors, and their beauty in nature. We
can study them from the standpoint
of the lumberman and investigate their
differences of structure and value as
lumber. Thirdly, we can study them
from the standpoint of the naturalist,
and the most interesting and convent
ent way is to study their leaves
NeedIe-Leaf Scarce Here.
The first classification of trees, &C
cording to foliage, is into needle-leaf
and broad-leaf trees, of which the first
class is represented in this vicinity by
only few specimens. All the native
and cultivated trees grown here are
broad-leaf trees, which in turn can be
divided into trees with opposite leaves
and those with alternate leaves. To
the first division belong the many var
ieties Of soft and hard maple, box
elder, buckeye, catalpa, and ash. To
the second division belong the oak,
with its many varieties of white, black,
red, and burr oak, the walnut. butter
nut, ailantus, sycamore, the numerous
varieties of hickory, the linden, hack
berry, elm, ironwood, locust, poplar,
birch, alder, ETC. All of these can
easily be distinguished from one an
other by peculiarities of their leaves
and the study of them, as outlined by
Mr.. Paarman, can be made a most in
teresting one
Don't Thrive In Cities.
Mr.. Paarman has made a critical
value as shade trees and ability to
thrive in cities. If more attention
were paid to this fact and scientific
knowledge and methods used in plant
ing them, much time and expense could
be saved and our cities could be more
effectively improved and beautifed
Most of the shade trees, the soft ma
pie, box elder, catalpa, walnut, elm,
etc, as a rule thrive very poorly in
large cities and are susceptible to in
sects, fungi and disease After study
ing all local varieties, Mr. Paarman
concludes that the four trees best
adapted to large cities are the oak,
ailantus, sycamore and Norway maple
These have through centuries shown
great strength and hardihood and are
able to retain their strength and
beauty for many years.
Senior Glass Election.
The senior class of Augustana col |
lege held its annual organization meet |
ing and election of officers yesterday. |
Albert F. Schersten of Titusville, Pa, |
was chosen president and other officers |
were elected as follows:
Vice President-Philip Sodergren.
Secretary-Ethel Asklof
Treasurer-H. A. Larson.
Athletics Manager-Paul Andreen.
The class which be graduated next |
spring will be about % in number. It's |
members have taken a very prominent |
part in all lines of school life, in So |
cial, musical, literary and athletic or
CARNATIONS, and already preparations
for a busy social season are under way. |
The basketball team has to it's credit |
an almost unbroken line of victories
and the class has also been we'll rep
in debates and on other pub
lie occasions.