The evening times. [volume] (Grand Forks, N.D.) 1906-1914, 1906-08-18
SLEEP LONG.
Eminent Scientists Urge More Sleep
and Dreamless.

Eminent Scientists Urge More Sleep
and Dreamless.
The papers read in the physiological
section of the British Association for
the Advancement of Science discuss
ing sleep and rest were all opposed to
the old idea that mankind should be
content with short slumber. The duke
Of Wellington's dictum of six hours for
man, seven for a woman and eight
for fool went by the board.
Francis Dyke Acland urged the
necessity of plenty of sleep for the
young as necessary to their bodily
and mental development. He said that
most of boys growth was done in
bed. He quoted letter from the
head master of a large school, where
the breakfast hour had been changed
from Z to o'clock, as saying that the
whole school was brighter and doing
better work.
DR.. Gotch said that the healthiest
sleep was dreamless. He mentioned
Lord Kitchner's faculty of being able
to go into dreamless sleep at any mo-
ment.
Prof. Lewis said that the normal
sleep of laboring man during the
first half hour was very deep and then
grew shallower.
Professor Meyers related his own
experience with German doctor. He
arranged to be awakened after a half
hour to see what his mental condi-
ton was. He set himself several prob
lens in arithmetic The next day he
was awakened after an hours sleep.
and so on, increasing his time for
sleep by an hour day until he got
six hours. He found his ability in
connection with arithmetic as great
after an hours sleep as after six
hours. When, however, he came to
try another test this one completely
broke down. In trying to test his
memory he found it grew in proportion
to the number of hours of sleen he
took.
Lord Kelvin writes from the CONT
nent an interesting letter concerning
radium, prompted by reading in a
newspaper the following massage:
IN the mathematical and physical
section of the British Association for
the Advancement of Science q discus
sion was opened by Professir Soddy
on the possible transmission of the
elements. The statement that
the production of helium from radium
has established the fact Of the gradual
evolution of one element into others
was not seriously questioned"
Lord Kelvin says: 81 wish to re-
mark that an isolated experimental
discovery by Sir William Ramsay and
Professor Soddy, brilliantly interest
ing as it is and solidly instructive as
1t Is toward the theory of radium, sug-
gests nothing more toward any r1odi-
ncatlon of the atomic doctrine pro-
posed some 2,5c0 years aso by Dem
oc:itus a1d universally adopted by
cha;1ists and other philosophers III
me nineteenth century than does Sir
william Ramsay's original discovery
OF hel1um as an emanation from the
mineral clevite. The obvious conclu-
sion from the two discoveries is that
clevite and radium both contain
helium.
Il cannot refer thus publicly to the
discussions of radium in the British
Association meeting without protest.
ing against the hypothesis that the
neat OF the sun, the earth or other
bodies of the universe is due to radium.
believe 1t is mainly due to gravita-
ton; and believe that the experimental
results on which the radium hypothes
SIS has been built give no foundation
upon which 1t can rest"