129 



The stages in the modern recession are summarized 

 in the following table: — 



Year. 



Before 1794 . 



1794 to 1880. 



880 to 1884. 

 880 to 1886. 



886 to 1890. 



890 to 1892. 



892 to 1894. 



892 to 1899. 



Movement. 



Advance. . 

 Retreat. . . 



Retreat. . 

 Retreat. . 



Retreat. . 

 Advance. 

 Retreat. . 

 Retreat. . 



Amount. 



34+ miles 

 (54 km.) 

 24+ miles 

 (38 km.) 



4,000 ft. 

 (1,200 m.) 

 3,300 ft. 



(1,000 m.) 

 900 ft. 

 (270 m.) 



1,900 ft. 

 (570 m.) 



Rate 

 per year. 



1,488 ft. 

 (452 m.) 



666 ft. 

 (202 m.) 



825 ft. 

 (250 m.) 



271 ft. 



(82 m.) 



Based on 

 Observations by 



Vancouver and 



Whidbey. 

 Muir. 



Lamplugh. 



G. F. Wright. 

 Reid. 



Reid. 



Boundary Survey. 



Gilbert & Gannett. 







Earthquake 





1899 to 1903. 



Retreat. . . . 



12,620 ft. 

 (3,830 m.) 



3.155 ft- 

 (959 m.) 



Andrews. 



1903 to 1906. 



Retreat. . . . 



18,480 ft. 

 (5,610 m.) 



6,160 ft. 

 (1,870 m.) 



F. E. & C. W.Wright 



1906 to 1907. 



Retreat. . . . 



13,200 ft. 

 (4,000 m(). 



13,200 ft. 

 (4,000 m.) 



Morse, Klotz. 



1907 to 191 1. 



Retreat. . . . 



2,000 ft. 

 (600 m.) 



500 ft. 

 (150 m.) 



Tarr and Martin. 



34883—9 



