560 PROCEEDlNCxS OF THE WASHINGTON MEETING 



of modified drift, associated with the moraines, has an average width of 1] miles, 

 as described in volume X of the Iowa Geological Survey, and is only about 10 feet 

 above the present relatively insignificant bottomland, which averages about a fifth 

 of a mile in width. Below the junction of the Big Sioux with the IMissouri, this 

 floodplain of Wisconsin time continues with a width of 6 to 12 miles on the east 

 side of the Missouri through the distance of 90 miles to Council Bluffs and Omaha, 

 having only the same slight altitude above the river. Southward from the mouth 

 of the Platte river, as I think, the old Wisconsin floodplain was lower than the 

 bottomland today, which has gained in depth, rather than lost, ever since the Ice 

 age. Conditions requisite for silt deposition 30 to 50 feet above the Missouri at 

 Lansing, Kansas, wdiere a skeleton was discovered last February under 20 feet of a 

 deposit which I regard as the original lowan loess, appear thus not to have ex 

 isted during the ensuing Wisconsin stage of glaciation, nor during any part of the 

 Postglacial period. 



The antiquity of the Lansing man I think to be measured by about 12,000 years 

 or, at the longest, 15,000 years. But men are known to have been living in Europe, 

 and probably they may also have migrated to America, in the early part of the Ice 

 age, or even before it — that is, very surely as long ago as 100,000 years. Therefore 

 the resemblance of the Lansing skeleton to the average type of our American 

 aborigines, called Indians, appears in no degree surprising to one who believes 

 that the creation of plants and animals has proceeded by the gradual methods of 

 generic and specific development which are collectively termed evolution. 



This paper is published in full in the American Geologist, volume 

 xxxi, January, 1903, pages 25-34. 



HANGING VALLEYS OF GEORGETOWN, COLORADO 

 BY W. O. CROSBY 



An abstract is printed in Science, volume xvii, page 227. 



■ SCIENCE AT THE WORLD'S FAIR, SAINT LOUIS, 190k 

 BY J. A. HOLMES 



A short abstract is printed in Science, volume xvii, page 229. 



On motion of the Secretary, the following resolution was adopted : 



Resolved, That the hearty thanks of the Society be extended the officials of the 

 United States Geological Survey for provision of rooms and facilities for the very 

 large and successful meeting ; to the local committees on arrangements and dinner, 

 Messrs C. W. Hayes and G. H. Eld ridge, chairmen, for their generous efforts in 

 behalf of the meeting; to Mr AV. S. Robbins for constant and courteous attention 

 to the desires and wants of the Fellows and ofllicers ; to Mrs Charles D. Walcott 

 for the reception tendered the ladies of the Association and the Fellows of the 

 Society, and to the Bausch and Lomb Optical Company of Rochester, New York, 

 for supplying the lantern for the use of the meeting. 



At 7.30 o'clock p m the meeting was declared adjourned. 



