376 KANSAS UNIVERSITY SCIENCE BULLETIN. 
as though formed when the ice sheet was thin and weak. The 
general movement is shown by the following table of strize 
Locality, observer, reference. Direction. 
Near Omaha, es or eight feet above the river................ S759 Wis 
C White—Geol. Ia., vol. I, p. 95. 
Near mouth fe LA LRAT AS OR cep RRGEN EA ION Ola ete, ela Ao Toe S. 20° W. 
Meek—Final Rept. Neb., p. 92. 
T'wo ailess es at of Pacific Junction, Lowe so hooSusoCeanODH Oras S. 12° and 14° W. 
. Udden—Geol. Ia., vol. 13, p. 177. 
Three mee aa OLeeaciic. Junction Lowe peweciieiciieee aeierre S. 25°, 29° and 34° W. 
J. A. Udden—Geol. Ia., vol. 13, p..177. 
Three miles east by north from Tabor, Iowa.................. SW. 
J, A. Udden—Geol. Ia., vol. 13, p. 177. 
One-haliomileisouthiof Hinton lowa seen cee ine one S. 7° and 50° W. 
A. Udden—Geol. Ia., vol. 13, p. 177. 
One mile ea of Macedoniay Nowa: cuusspseutepsser ares, se ere . S. 2° W. and S. 10° E- 
. Udden—Geol. Ia., vol. 11, p. 269. 
Three to fows ioe south of Pacific Arbioese, Woeis ones goceeeac $. 9°, 40° E. 
. Todd—Bull. U. S. G. S. 158, p. 69. 
South of Sia eee Neb., 40 Bs Ciel Cp oh lds & oo oc Giclee clea aia S.SW. 
J. E. Todd—Bull. U. 8. G. S. 158, p. 69. 0 
Bennett Neb a cherokee eee relict er acne te ener e ee OI Sane Fan rat ree en et ioe AO OU OS SENT 
J. E. Todd—Bull. U. S. G. S. 158, p. 69. 
Weeping: Water. Neb:sor tutes iuvatecsyct ae tcepenad hens ate Clee Relay sPecataas SO CMW ign atlolncei ys 
BE. H. Barbour—Neb. Geol. Surv., vol. 1, p. 169. 
One mile north of St. Joseph, Mo., 125 ft. above river.......... S. 26° W. 
J. E. Todd—Geol. Rept. Mo., vol. 10, p. 121. 
One mile northeast of Kansas City, 130 ft. above river......... Si hos tee, PANO Ge 
J. E. Todd—Geol. Rept. Mo., vol. 10, p. 121. 
Bast part Mansas ity el O Olt seis ciel ciereyeicde ecter cis ekerei tel etevedeyens er ALCL SS oy OSL 
J. E&. Todd—Geol. Rept. Mo., vol. 10, p. 122. 
Seneca ean maricensn teckel ieee eetetaieet ania teri ten ci tettatasencker ne icterate §. 21° 24° W. 
L. C. Wooster—Amer. Geologist, vol. 10, p. 131. 
(c) The ice sheet entering Kansas was from the Des Moines 
valley rather than from the James and Missouri valleys. This 
is shown clearly by the distribution of red quartzite boulders, 
for they are found very abundantly on the extreme western 
edge of the ice lobe. If the ice had come down the Dakota- 
Missouri valley they would have been distributed only to the 
eastern half of it, and therefore would have been far east of 
the marginal effects of the ice, for the original ledges extend 
only a short distance into South Dakota. 
Moreover, the red boulders frequently abound in white and 
red pebbles, such as are not known to occur in the quartzite 
ledges of South Dakota, but are found farther east in Cotton- 
wood and Rock counties, Minnesota, where the original de- 
posits were nearer the old Archzan shore on the northeast, 
which furnished the material. There seems no doubt, there- 
fore, that the ice of Kansas in the Kansan epoch passed through 
the upper part of the main Des Moines river valley. 
This conclusion discounts strongly an oft-used map of North 
America, professing to show the ice streams at the maximum 
extent of the ice, and we may the more easily admit its inac- 
