Evening star., 1925-04-16

DR.. David Talbot Day, information
ally known geologist and former chief
of the mining and mineral resources
division of the United States Geologi-
cal Survey, died of heart disease at
the home of DIR. /. S. Stone, 1918
Rhode Island avenue, yesterday. DIR.
Day, who was 66 years old, had held
numerous positions of Importance
with the Geological Survey and was
a recognized authority on petroleum
and mining
DR.. Day was resident of Washing
ton, but recently he had lived in
southern California, still maintaining
an office in this city. Since leaving the
Government service several years ago.
DR.. Day had been one of the leading
figures in the petroleum industry and
had, during recent years, devoted a
great part of his time to the recovery
of oil from shale.
Authority on Refining.
In 1922 DR.. Day edited the Hand.
book of Petroleum Industry, which
has been generally accepted as the
leading subject on petroleum mining.
refining and other processes in the
production of the various products
from crude oil.
DR.. Day had been in this city on
business for the last two months, dur
ing which time he made his home at
the Rhode Island avenue address.
Born in Rockport, Ohio, DIR. Day
was graduated with an A. B. degree
from Johns Hopkins University in
1881. and three years later received
his Phi. d. degree. From 1884 to 1885
he was "A demonstration of chemistry
at the University Of Maryland. in
which work he early demonstrated
his ability and showed signs of his
later life's achievement.
He was an expert in charge of pc
troleum Investigations for the United
States Geological Survey from 1907 to
1914, and was consulting chemist for
the United States Bureau of Mines
from the latter year until 1920.
Won Notice as Student.
He was an exhibitor at the cen
tennial exhibition in 1876. and as early
as 1888, while still a student, was a
special agent for the Geological Sur
vey. In 1898 he was in charge of pc
troleum exhibits at the Chicago Ex-
position.
Later he was a director of mining
in the cotton States and was active
in the international exposition in
Atlanta, Ga, in 1896. A year later
he was secretary of the jury of awards
at the Tennessee centennial. In 1899
he was a director of mining in the
Transmississippi exposition He also
had the distinction of having an i'm
portant mission at the Paris exposi-
tion in 1900.
Besides having charge of exhibits
at other eXpositions, DR.. Day was
honorary committeeman of mining at
the Lewis and Clark exposition in
Portland, Ore, in 1905, and was at
the jamestown exposition in 1907 He
was president of the fuel section of
the international Congress of Applied
Chemistry in 1912.
Active in Many Societies.
DR.. Day had long been prominent
in scientific societies. He was mem
ber of the American Institute of Min
ing Engineers, the National Geo
graphic Society, the Geological So
ciety of America, American Chemical
Society, National Statistical Society
and the Geographical Society of
of the Engineers Club. the Chemist
Club of New York, and the Round
Table Club of st. Louis In addition
to his many other activities, DIR. Day
served with distinction as compiler
of mineral resources in the United
States from 1855 to 1904
He is survived by his widow, a son.
David Elito Day; a daughter. Miss
Elizabeth Day, and a nephew, Roland
Day.
Funeral arrangements have not been
completed.