26 



The National Geographic Magazine 



Kiom Gilbert's and Brigham's "Introduction to Physical Geography." D. Appleton & Co. 



A Traveling Beach on the Shore of Lake Ontario. The stones originally angular 

 become rounded as the waves roll them along 



known in the scientific world. Mr Gil- 

 bert, geologist of the U. ?. Geological 

 Survey, is a past president of the Ameri- 

 can Association for the Advancement of 

 Science. He was the recipient of the 

 Wollaston Prize of the Geological So- 



ciet3 7 of England in 1899, and is the au- 

 thor of ' 'Geology of Henry Mountains," 

 '' Lake Bonneville," etc. Mr Brigham 

 is head of the department of geology in 

 Colgate University and the author of a 

 well-known text-book of geology. 



DR SVEN HEDIN 



f Eg 1HE distinguished Swedish ex- 

 plorer, Dr Sven Hediu, who 

 jj_ ended his last famous expedition 

 to Central Asia in December, 1 901,* is at 

 present receiving one continuous series 



*See the S'ational Geographic Dfagaziiie 

 for ilarch, 1902, page 96. 



of ovations throughout Europe. He 

 has given lecturing tours in Sweden. 

 Russia, Denmark, England and Scot- 

 land, and after New Year's commences 

 a tour in Germany, France, Austria 

 and Hungary, and Norway. It had 

 been hoped that he would visit Amer- 

 ica this winter, but he writes that his 



