Evening star., 1921-11-06
GOODBYE TO BALD HEADS IF UNCLE
SANS LATEST DISCOVERY ABOUT THE
LOWLY PEANUT TURNS OUT A SUCCESS

is slightly darker in color than the
common household -four, but DR.. Jones.
essaying the role of domestic scientist,
expressed the belief that this would MOI
interfere with cake making and other
finer angles Of the kitchen art. This
peanutted wheat flour is now being
manufactured by one Of the large mili-
ing concerns and the bureau is endear-
oring to have other firms join in its
production.
noted first on rats. One was. tsa o.
dinary wheat Hour and another Nh
fed the same amount of the peAnui
wheat mixture. 1t vas found that th'
peanut flour took on weight rapidly
and evinced every sign Of norIna
health. while the wheat-fed rats coulG
DC dist,nguishsd Tor their ruined FUR
All Of which was another boost for
The protein Of the peanut. DR.. Jones
amino acids necessary to the forIna
tion Of muscle in cattle. and lie J.
recommending to stock raisers th'
addition Of peanut meal 70 corn al"
alone, he finds, does not provid
enough en- ugh, s}ysane for the normal grow
The protein division has not COLI
fined itself to investigation of ti,.
peanut. One OF the most ilnportar
experiments in the way of developi,.
| new sources of stock feed was TIL.
conducted with tomato seeds, O.
! which 1t Is estimated about 1900 ton
are wasted annually in the canniir
! industry. Rats also were made US
, of to test the nutritive value of tn
| seeds. and the observation of official
| i'll these tests is cusptaiued In the fol
| lowing formal summary:
"A dict in which tomato press cali
furnished the sole source of protcit.
and water-soluablc vitamine enable
albino rats to grow at the normal rat.
| such diet was made adequate by til
addition of starch, suitable inor,
ganic salt mixture. butter fat and
lard. Normal growth was also oh
| tanned when the butter fat OF til"
above diet was replaced by lard"
The tomato seed press cake to which
reference is made was obtained b!
| compressing a mass OF tomato seed
until virtually all the water and
| juices had been expelled. Thc cais
was then. ground into u meal In th'
oil is obtained. This oil composes
about % per cent of the seed, il has
| been found. The press cake has beer
fertilizer. and to a limited extent AZ
a cattle feed. With the announcen'ent
by the bureau of chemistry that this
press cake is as valuable protein
ers are rapidly securing supplies @:
| the new feed. ,
| In the series of experiments, WIN
| the rats as victims, the following
composition of diet was used: To-
! mato seed press cake, SO grams
starch, q grams; salt mixture. 4
grams: butter fat. 10 grams. and lard,
+ Is grams. Some OF the rats exceeded
normal growth on this diet.
Z Il x X
lnR. JONES has on his desk samples
- OF nearly every edible bean
grown in this country and abroad
Many of the specimens have been
tested for their nutritive qualities
among them the lima bean, Of which
it was found that unless supplement
ed with the valuable cystine 1t did
not encourage growth. A diet OF cook
ed lima bean meal, supplemented with
three -tenths per cent of cystine, fur
nished adequate protein for the nor
NAL growth of albino rats. It was
found. Another test was made With
Chinese and Georgia velvet beans and
with the oriental adsuki bean. Mai,
other beans are being fed the rats.
while results are noted.
Assisting DR.. Jones in conductinr
the nutrition investigations are A.
Finks, who has charge of the animal
room; H. c. Waterman, c. f. T. Gers
dorff, S. Phillips and Otto Moeller.
| The series of researches carried on
by these men has irrefutably brought
out that unless animals are afforded
icystine in their food they fail to al
tain normal growth and occasionally
die. The same conditions apply I"
human beings, it is said. With this
fact in mind, the inquiring reporttr
asked DR.. Jones how it was that many
tpersons never eat peanuts and yet do
not appear to be losing their grip On
life. To this the nutrition expert re
tplied that peanuts were only one oi
many sources of cystine. Eggs, mil *
land various dairy products also ar
lrich in the acid. he pointed out, a
are a number of other foods found o.
the dinner table of the averaG'
American family.
Peanuts. however, the experiment
with the rats showed. instead of bein.;
a second-ratc sidcshow confectioln
should hold a commanding place ~
the halls of domestic cookery.
And. as the young ladies with tie
bobbed locks have ascertained, alSv
in the realm of tonsoria1 artistry.