The sun. [volume] (New York [N.Y.]) 1833-1916, 1914-06-07
YALE WILL SEND OUT
THREE EXPEDITIONS
Two Will Go Into Dakotas ana
Third to Arizona and
Southern Utah.
SEEK PREHISTORIC HORSE
School Of Geology Will BE Held
and Origin Of Garncts
Traced.

New HAVEN, Conn, June 7.-Thr..
Yale scientific expeditions are being az,
to go into the field right after tho cou,.
mencement. according to an announea.
ment made at the Peabody Mu.u.r,
These do not include the Yale peruv,,r
expedition. the first contingent of which
sailed several weeks ago, but are ,bro.
separate parties under charge OF the yro.
logical department of the university.
Richard S. Lull, professor Of vertcbra,.
paleontology and one of the leadipx
paleontologists of the country, ana as.
sistants Will go to the Rosebud India,
reservation In South Dakota to look for
prehistoric horses to complete Yal,s
collection, said TO be already the finest
In the world. Herbert +. Gregory, sill.
man professor of geology, will 20 N
southern Utah and northern Arizona IA
determine whether or not Arizona gsr.
nets are glacial deposits of triassic tina
and Freeman Ward, assistant professor
of geology, will leave the coming week
to open the Yale summer school OF ~
ology at Whitewood. s. ID.
Prof. Gregory has Just finished an ex.
tensive exploration Of the underground
water supply OF southern Utah and north.
ern Arizona for the Government which
has covered several years of work. TIE
deposits of tho Chinlee Valley, which
are unlike anything to be found In that
part of the country. have been OF grea,
interest to biologists, and Mr.. Sterrott
and Mr.. Woodruff, who have been ex'
ploring that region recently for the Gov.
eminent, have reported that they are
glacial In origin.
To Determine Period.
"Jf these deposits are OF glacial orr.
GIN" said Prof. Gregory in discussing lis
proposed trip, they do not belong 10
the recent glacial period. 1t is held that
they belong to triassic time. and II 10
to determine this point that | am taking
this trip this summer"
Prof. Gregory will go first TO southern
California where he has some work TO
finish. and will then enter the Chinles
Valley He will be In that region for
three or four weeks.
Prof. Lull hopes to get specimens OF
the miocene horses. Scientists all over
the world haxe examined the Yale coli
lection OF prehistoric horses, which in-
cludes almost every known species.
"It will be remembered" said Prof.
Lull, "that an expedition was sent from
the Peabody Museum in 1912 to get one
or more complete skeletons of prehistoric
horses to illustrate the evolution OF the
equine race In North America.
at was proposed to 20 first to Texas to
seek the latest stages and then to South
| Dakota for the more primitive forms
The collecting In Texas proved 40 profit
able that the South Dakota trip was
postponed. We now propose to take ~
the Northern work.
Party Already Chosen.
1.-THE party will consist OF two OF the
Museum preparators-F. w, Darby,
member OF the Texas expedition, and w
s. Benton. who. with a local man to serve
as cook and guide, and myself will form
the main expedition. Later in the summer
we expect to be JOINED by John T. Don.
eghy, Jr.. II. and Malcolm II. Thorpe,
'l3, graduate students in the geological
department. who will attend the summer
course in geology in the Black Hills.
The expedition will go to Valentine,
J Neb.. where an outfit Will be secured
and will then drive north into the Rose
bud Indian Reservation. where the bad
Lands along the Little White River VIII
be carefully explored for miocene horses,
such as the three toed Hipparion and Pro-
| tohippus.
Upon completing this part OF the wor',
| we propose to move westward into tha
/ Big Bad Lands, the strata OF which
! are mainly OF oligocene age and con-
| tain the smaller three toed Mesohippus
! These bad lands constitute one or tho
| richest collecting grounds In the word.
and we should return laden with spoil
even IL perfect horse skeleton Is not
found. Still later the expedition Will move
again westward into eastern Wyoming.
whence the large collection of horned
dinosaurs (Triceratops) now In the mu'
scum was secured"
The Yale Summer School OF Geology
which comprises the third Of the sc'en'
tific expeditions sent out by the unlver'
sity this season. will have Its headauar'
ters In the Black Hills Of South Dakota,
This Is the fourth year that this schoo
has been In existence. A field course IN
geological surveying will be conducted
from June "a to August s. In charge OF
Prof. Freeman Ward.