Evening star., 1949-04-01
WhoIes Are Like Children
Coming Out OF School
Nhs'lr, >queal. Ssns ..d <t>,,s,.
Segrn'l.i< Rercrt Attsr Sf,sa,
Ev yksmss & GYy.,
s'2A}rs Atr reass tsagg<t~s.

WhA}rs Atr resN tsagl<res.
T.7ry Whsst4s ard Ns0ea3 Th~s s.N. ~.
stoa' IKE a efo~d a. eh8errr -.w ezt Il
Ncacct
1h.s il trUs At leAa fsr ~. 49,. ~.
posSr sometimes known Ire ~eA rAr.r~
- ne North Atlantic Aoccsegnk 10 r-a~,-t
3uv made 10 the AnasTSSan AS~sc4As s>ss ts+
The Advancement ef Scasrre ~ r. W.
lam r Schevlil o! The Wnsas No3. CAc+.nn.
graphic Institute.
The poyT>o.Se ik SrnAA Snas ls N~l~aE.
"a the name genera family et ,sxssAs>s tssa-
Gears ~htch includes ihs 'erTle4, esva ~
SAe Antarctic. most FeAf~arns 81 r ~s Cssa.
tQres compared 80 Wh&rh nAn-saIng F4srr
would seem IKE a p<t tttttr prr~.raab-r
all nenhTFs 81 shts kcnrts. s~N+v save
rescex Nhethr, tho app,es .,sa 20 tss
other gr~al dtVlsaoH ot INC ~AAst sAm.l,.
whose members have a ssr,s q ~ss.tAnr.
instead ot teegh - uncertain
DR.. sch~slu ana h.s assistant ~ W hvtfrn.
phones in The water az TIE lo@et SaagrnA~
River In 0uehec where Tho whsEr pNspclsss
assemble in large numbers Al certain SrA>ras
Hitherto the soscrs 81 these mamma rad
been kno~u only from tyt,,lns >n,.na. hessv.
outside the water Nhseh wss nes fhtu nAt-
ufsi medium
Lke Aonkrv, and Men
The sounds they heard Dr. Sche,lI rtgostS
SoueaIs. varied allh utRlns and e}uc klns
sounds slightly reminiscent oi a ssttnsea
orchestra tuning up as well A. me~trE ara
occasional ehirpS, some ot The sounds acre
beil-llke and few reSmeisd an ethe
sounder Occasionally the sounds ~ouid
suggest q crowd OF children shouting in The
distance At times there %erw AhArp gerostN
somewhat like q blow with split bal ~
a slap on the water. On tao occasions We
heard trtlling, which quite JUSTIFIED ,h' name
sea canary"
These voices tho report emphAslsrs esr
be heard only under water. 81 depths q,
from so 10 90 feet Apparently ire tAIka-
tiveness OF the porpoises d,minishes Etestl!
as they approach the surface
The lnQuaciousneM of the whale nr.
Schevill says contrasts markedly with most
terrestrial herd mammals and compares with
such ehatterboxes as monkeys and men
Average life span for rats can NJ in.
creased from S to 10 per cent by approHi-
mRteiy doubling the minimNly adequate
allowance Of vitamin A in the dtt
This conclusion has been reported Ia ire
National Academy Of Sciences by pr.
Henry c. Sherman OF Columbia Univefkitv.
1t Is based on a long series Of experiments IN
varying the amounts Of this Vitamn-es-
sential for prevention OF nisht blindness ard
supposedly somewhat of q protection against
infection but whose further functions ss
quite dehatable,
Tests over q Iona period DR. Sherman
says. have established that rata remain
perfectly healthy with an allowance oi three
international units OF vitamin A. an almost
infinitesimaliy minute amount. per sram
of dry food In the diet One OF his rat fam
flies is thriving In the s7th generation On
this allowance.
Effect Seems General
But when this amount Is doubled ar
tripled he fnds. length Of lfe Is increased
approximately per cent for males ana 10
per cent for females Furthermore the
length OF reproductive life for females 10
increased about II per cent The sffeet
seems 10 be general for the whole vital sys-
tenn OF the animals: Further tnersases In the
vitamin level seem to have little effect
SAYS DR.. Sherman:
obviously the newer knowledge of nu-
triton still is too young 10 have made simt-
larly controlled studies OF entire lives of ha.
man subjects. but from what We knos 81
the chemistry Of the nutrition of the hn-
man and rat species. II Is prohahle that the
same principle applies and that increasing
liberalty OF intake OF vitamn A brings IN.
sreasing benefit 10 nutritional we'll being
and length OF life up 10 higher levels than
previously supposed.
"Optimum intakes OF vtamin A appear Ia
be at least three or four times as hieh ss
the levels of minimum adequacy sometimes
accepted"