5

“Wednesday, November 6, 1957

THE COLLEGE NEWS

Page Five



Cornerstone Ceremony And Talks

Continued from Page 1
ber 2-3, 1957.

Large black notebook containing
plans. and drawings and descrip-
tions of the proposed new buildings
for Biology and Physics and: Mathe-
matics. ‘

Mimeographed “Notice to Pros-
pective Applicants and Professional
Journals” from the U. S. Depart-
ment of Health, Education and
Welfare, Public Health Service,
National Institutes of Health on
appropriation of funds to assist
in the financing of the construction
of facilities for research in the
“sciences related to health.”

Two sand dollars collected at
Beaufort, North. Carolirfa in 1887
by Dr. E. B. Wilson, Professor of
Biology at Bryn Mawr and head
of the Department from 1885 to
1891,

“Chromosomes and Heredity,”
New York, 1910 by Professor T..H.
Morgan. A_ reprint from the
American Naturalist.

“Some Aspects of Cytology in
Relation to the Study of Genetics,”
New York 1912, by Professor
Edmund. B. Wilson, A reprint
from the,American Naturalist.

“Biographical Memoir of Edmund
Beecher Wilson” by T. H, Morgan.
Reprint from the National Acad-
emy of Sciences of the United
States of America Biographical
Memoirs.

“Edmund Beecher Wilson—Sci-
entist, 1856-1939” by Franz Schrad-
er, Reprint from the Columbia
~University Quarterly, September,

1939. ~ 2 .

“The Kinetochore or Spindle Fibre
Locus in Amphiuma Tridactylum”
by Franz Schrader. Reprinted from
Biological Bulletin, June, 1936.

Talks on Biological Research at
Bryn Mawr College by members of
the Department followed the Cor-
nerstone Ceremonies for the new
Biology Building. The following

are summaries of the talks given
under the heading of “Specialized
Research in Biology”:

Food for Onions: Mary S. Gar-
diner, Professor of Biology.

In onion seedlings there are
three clearly distinguishable re-



gions—the primary root, the coty-
ledonary plate and the cotyledon
attached to the seed,the source of
nutrients for the growing plant un-
til it is rooted in the ground, it
develops photosynthesizing leaves
and becomes a self-supporting sys-
tem. In these three areas there
are differentiated cells but also
embryonic ones capable of multi-
plying rapidly and of developing
new structures. Because a seed-
ling like this represents a_ rela-
tively simple tissue system with
the potentialities of various pat-
terns of growth, and because they
are easy. to obtain and to handle,
onions. were chosen for the stud-
ies on factors influencing typical
and atypical growth.

The first objective was to deter-
mine the degree of self-sufficiency
of the different parts of the seed-
ling when separated from the seed
and thus deprived of natural source
of nutriments, and to study ‘the
growth patterns in relation to nat-
ural growth. The results indicate
that pieces in which the three
primary areas of the seedling are
represented are capable of syn-
thesizing the complex materials of
their own substance, are capable
of division vand of conducting the
energy-releasing reactions neces-
sary to implement such, processes.

It seems evident that the coty-
ledonary plate is essential to the
growth in culture of onion seed-
lings detached from the seeds.
This implies that the cells of the

Coup waonarynlata_have_ synthetic,

capacities that are lacking in the
roots, and that the roots draw
from them materials essential to
the division of their cells,

Microbial Mutineers: Eleanor A.
Bliss, Professor of Biology. and
Dean of the Graduate School.

In an attempt to induce resist-
ance in bacteria in the living host,
under experimental conditions,
‘white mice have been infected with
staphylococci; some of the mice
are treated with streptomycin
twice a day for two weeks while
others are left untreated. It is
much harder to produce resistance





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It’s been said that the atomic submarine
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only surfaces to let the crew. re-enlist.

Perhaps for this reason, the Navy has taken

valuable space aboard the “Nautilus” for the _
only soft-drink vending machine in the entire

submarine fleet.

Naturally (or you wouldn’t hear about it
from us) it’s a Coca-Cola machine. And not
unexpectedly, re-enlistments are quite
respectable.

Rugged lot, those submariners. Great

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in the staphylococci in this way
than had been anticipated (from
the ease with which it can be done
in the test tube and the frequency
with which it occurs in patients).
Only eleven cultures from 500 mice
were clearly resistant. However,
six of them had extremely high re-
sistance and, of particular interest,
two of these very resistant cultures
originated in mice which had re-
ceived no streptomycin. Their re-
sistance was a spontaneous change
—a mutation. It seems probable,
then, that the four other very re-
sistant strains also started as
spontaneous. mutants.
only five strains whose resistance

oped as a result of exposure to the
drug.

The question now under investi-'
gation is whether such exposure
has no effect whatever upon the
great majority of strains, In pre-
liminary experiments a small dif-
ference has ‘been detected between
the strains from treated and un-
treated mice: in cultures from
treated mice a larger proportion
of the population can tolerate low
concentration of streptomycins
than is the case with cultures
from untreated animals.

Mice on Mountains: L. Joe Berry,
Professor of Biology.

‘Mice kept at a simulated alti-.

tude of about 20,000 feet for per-
iods of three weeks to four months
are -consistently more susceptible
to certain bacterial infections than

animals kept continuoysly at nor-

mal atmospheric pressures. In-
terestingly enough, however, the
mice that had been at the simulat-
ed altitude were more resistant
to a virus causing influenza.

The change responsible for the
altered resistance to infectious
diseases occurring in mice at al-
titude is unknown. Very likely it
is a nonspecific factor affecting
resistance to disease. Certain ad-
ditional findings offer some hope
of understanding why mice that
have been at altitude respond as



This leaves’



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they do to the bacterial and viral
infections. A selected chemical
substance, normally present in tis-
sues of animals, decreases in con-
centration to a ‘minimum value
after, three weeks of altitude and
remains unchanged after. four
months, This implies an altered
body chemistry.

Designs in Development: Jane
M. Oppenheimer, Professor of Bi-
ology.

Embryology has now moved into
new channels. About 25 yeats ago
deletion and grafting experiments
on amphibian eggs showed that
particular relationships ‘between

i ft th and
to streptomycin may have devel-: pernower parte © ri

embryo were accountable for one
manner in which these parts would
later develop. The principle of pro-
gressive differentiation thus had re-
ceived verification through ingen-

ious and critical experimentation. }

Today biologists are attempting
to describe development quantita-
tively in chemical and biochemical
terms. I have concentrated on at-
tempting to demonstrate mechan-
isms by which the whole embryo
controls the development of its
parts and vice versa. I have been
especially interested in some of
the factors which result in the dif-
ferences between one part of the
brain and another. The chief im-
portance of the performance and
results . of these experiments is
that they add to our knowledge of
nature and its functions.

Protozoan Proselytes: Robert L.

| Conner, A Assistant Professor of Biol-

ogy.

The influence of hormones on
bodily processes has been observed
for many years. A great deal of
knowledge has been accumulated
about glands involved, about the
lack of over-abundance of hor-
mones produced by these glands,
about the chemical nature of the
hormones, about the interactions of
these compounds, and about ways
to treat these disorders. However,
nobody is cerbain as to how any of
these compounds act in bodily pro-
cesses. The effect of hormones
may be on body chemistry or
on the structure of the cells of
living things or. perhaps on both.

The main difficulty of studying
the action of hormones has been
the complexity which the investi-
gator faces. In man there are doz-





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FREE LESSON—On Monday, November 18
Room D, Taylor . . . 7:00 to 9:00 P. M.
See Joan Shigekawa at Rhoads. Hall











MR. CHARLES.
HAIR-STYLIST

formerly of the Antoine

Salon for the past ten years

is now with us.
[1 8 pl

Bryn Mawr, Pa.

*





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FRENCH HAIRDRESSERS
“848 Lancaster Ave.



LA 5-8777





Self-Gov Procedure

Explained in Detail
by Bette Haney

First Junior Member to Self-Gov

What is the Self-Gov Board up
to? Their minutes-read-like a well
censored report of the Atomic
Energy Commission. What happens
specifically at their weekly meet-
ings? What action do they take in
order to “deal with serious cases”
referred to in their Constitution?
Why don’t they publish who vio-
lates the honor system and the
resulting consequences? Since all
girls on campus are ipso-facto
members, don’t they have a right
to know specific details?

There are open advisory board
and executivé meetings. However,
occasionally these meetings are
closed. Perhaps this will explain
why. When a girl violates the honor
system and turns herself in, she
comes ‘to talk with the members of
the executive board. Here she has
the opportunity to explain her side
of the story, why she did it, how
she interprets the rule, and how
she feels the honor system relates
to her as a member of the college
community. What relevance does
this information have for the entire
student body? Might it be a specific
warning not to let their “honor
slip?” This might be true if the
system were “big stick politics.”
But it isn’t—it is a system where
honor is a personal matter, a per-
onal value, and a personal decision.
The system is designed to value the
integrity,.and respect the dignity
of the individual. Therefore, it
would be contrary to the basic

on ideals..of.the..Bryn. Mawr. Self-Gov

system as well as of no constructive
value to expose a girl publicly to
the judgment of the entire campus.

When a mistake is made, it is
difficult enough to account to one-
self and to several elected repre-
sentatives from one’s group. If ex-
posed to the entire campus, as is
the policy in some colleges, it
must be almost impossible to re-
gain group respect and more im-
portant still self respect, both of
which are necessary to make the
Self-Gov honor system alive and
personally meaningful.



ens of related forms of some hor-
mones and always the scientist is
faced with a multitude of similar
compounds,

Microorganisms may ‘revide a
clue as to how hormones alter or
maintain the balance found in nor-
mal individuals. These small or-
ganisms contain hormone-like com-
pounds which offer a much simpler
system than’ found in higher or- .
ganisms. Information gained from
a simple system may possibly be
applied to a-more complex situa
tion such as found in man.





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Bryn Mawr







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Member
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Wm. J. Bates, Jr. 823 Lancaster Ave.
Manager Bryn Mawe,-Pa.









Forget Someone at

Halloween?

Remember Him, Her or

Them with
Thanksgiving Cards _
from

- DINAH FROST







Bryn Mawr.