Evening star., 1950-07-24
Age Can Be Determined
By Study Of Single Tooth
Error of Less Than 4 Years
Held to Be Possible
By Thomos R. Henry
Years are stamped in teeth.

years are stamped In teeth.
The age of a human being can be
determined with an error of less than
four years by examining single tooth.
according to an announcement Of the
American Dental Association. This Is
based on mathematical formula worked
out by DR.. Costa Gustafson Of the state
dental department Of Malmo, Sweden.
Determination Of age plays large part
in legal medicine and often in the work
Of detective. In the past, however, 1t
has been at the best little better than
glorifled guessing, and it was possible to
go wrong by as much as 80 years.
Where violence has produced extern
sive changes in an individual, the teeth
often are the only means Of identifica-
ton, particularly in connection with
fights where teeth have been knocked
out.
Changes Are Measured.
The Swedish scientist bases his mathe-
matical formula on measurements OF
many changes in teeth connected with
age, as contrasted with previous meas
urements which have taken into account
only single changes.
The measurements are based on the
following changes:
surfaces as the result of chewing.
PeriodontoSis, or changes in gum
structures.
Secondary dentine, which may develop
around the tooth pulp in case of decay.
The position Of bony tissue at the root
Of the tooth.
Transparency of the root, which in
creaseS with age.
Conclusions from any one of these fac.
tors may be quite misleading, he points
out, but all f1t together into definite
patterns.
The studies were made on the extracted
teeth Of persons of known ages ranging
from II to SO.
Making fish into whites Of eggs In
enormous quantities now is possible, ac-
cording to an American Chemical So.
ciety announcement.
One pound of the artificial product
is equal to the egg-white contained in
$50 ordinary hen eggs. The product,
technically called "albumen," contains
from 80 to 80 per cent pure protein, the
essential food material for which eggs
are of greatest value. It can be used
for baking, ice cream, mayonnaise and
drug products. 1t also has an extensive
use in the textile, paint, soap, cosmetics
and paper industries. Recently it has
been spun into hbers, but this use is far
from economical at present.
Trial production of more than 600
pounds a week HAS been started by two
Norwegian firms. One pound of the
synthetic product requires approximately
IL pounds Of waste from the Norwegian
Goldfish industry.
Production Is Mechanical.
Production" says the announcement,
"is carried out by a completely mechani-
cal-chemical process. From the time the
fish enters the pipe line at one end Of
the plant until it finally emerges at the
other end in the form Of dry. white
powder it is not touched by hand.
Norwegian fishermen haul about q
million tons of fish out of the sea each
year. Hundreds Of thousands of tons
are processed each year into margarine
and cattle fodder" -~----
The basic process was developed in
Germany just before the war. It could
not compete with artificial egg-whits
obtained from milk, soy beans, ground
nuts and coconuts. It always tasted
and smelled like fish. These objections
have been eliminated in the Norwegian
process which, it is claimed, is better
product than can be obtained from eggs
themselves.