UNSPOILED. 
There are few places left on earth that are 
unspoiled. Sri Lanka is one of them. Once 
known as Ceylon, Sri Lanka has Asia’s best 
game preserves. 200 species of animals, 425 
kinds of birds and hundreds of square miles of 
leopard, elephant and sambur. 
The wild flowers of Sri Lanka include a 
dazzling display of orchids. And where else 
could you find 600,000 acres of tea gardens 
on misty mountains? 
There are 75 ways you can tour Sri Lanka. 
Ranging from 3 to 21 days. Accommodations 
begin at $5. Deluxe sells for $45. Never has 
your dollar worked harder. From shopping to 
sightseeing. 
In our ancient cities, you can enjoy frenetic/ 
festivals that reflect the unspoiled nature of a 
culture which dates back 3,000 years. 
Whether your visit is pleasure, business or 
a convention, our unspoiled country will spoil 
you. Just one hour from India, three hours 
from Katmandu, Bangkok and Singapore. 
Write for a color flyer and tour digest that 
includes special airfare. 
sri LQnKQ 
Pearl of the Indian Ocean. 
Ceylon Tourist Board/Dept. NH13 
609 Fifth Avenue, New York, NY 10017 
Name 
Address 
City/State/Zip 
RESEARCH MONIES AVAILABLE 
The Winchester Museum, Buffalo Bill Historical Center, an- 
nounces the availability of research monies through its Kinnucan 
Arms Chair Endowment Fund. The Kinnucan Arms Chair supports 
original research and development of scholarly studies relating to 
firearms in the areas of history, evolution, technology and aesthet- 
ics. Projects need not be restricted to Winchester-related subjects, 
but it is required that the Winchester arms collection be utilized as a 
source of information and research. 
Inquiries for further information should be addressed to the Kinnucan Arms 
Chair, Buffalo Bill Historical Center, P.O. Box 1000, Cody, Wyoming, 82414. 
mals cannot evolve many advanta- 
geous forms because inherited archi- 
tectural patterns preclude them. 
Wheels are not flawed as modes of 
transport; I am sure that many animals 
would do far better with them. (The 
one creature clever enough to build 
them, after all, has gotten some mile- 
age from the invention, the superiority 
of camels in certain circumstances not- 
withstanding.) But animals cannot 
construct wheels from the parts that 
nature provides. 
As its basic structural principle, a 
true wheel must spin freely without 
physical fusion to the object it drives. 
If wheel and object are physically 
linked, then the wheel cannot turn 
freely for very long and must rotate 
back, lest connecting elements be rup- 
tured by the accumulated stress. But 
animals must maintain physical con- 
nections between their parts. If the 
ends of our legs were axles and our 
feet were wheels, how could blood, 
nutrients, and nerve impulses cross the 
gap to nurture and direct the moving 
parts of our natural roller skates? The 
bones of our arms may be uncon- 
nected, but we need the surrounding 
envelopes of muscle, blood vessels, and 
skin — and therefore cannot rotate our 
arms even once around our shoulders. 
We study animals to illuminate or 
exemplify nature’s laws. The highest 
principle of all may be nature’s equiv- 
alent of the axiom that for every hard- 
won and comforting regularity, we can 
find an exception. Sure enough — 
somebody out there has a wheel. In 
fact, at this very moment, wheels are 
rotating by the millions in your own 
gut. 
Escherichia coli, the common ba- 
cillus of the human gut, is about two 
micrometers long (a micrometer is 
one-thousandth of a millimeter). Pro- 
pelled by long whiplike threads called 
flagella (singular, flagellum), an E. 
coli can swim about ten times its 
own length in a second. Lest swimming 
seem easy for a creature virtually un- 
affected by gravitational forces and 
moving through a supporting and 
easily yielding fluid, I caution against 
extrapolating our view to a bac- 
terium’s world. The perceived viscos- 
ity of a fluid depends upon an or- 
ganism’s dimensions. Decrease a 
creature’s size and water quickly turns 
to molasses. Howard C. Berg, the 
Colorado biologist who demonstrated 
how flagella operate, compares a bac- 
terium moving in water to a man try- 
ing to swim through asphalt. A bac- 
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