Elevations and depressions on the earth — The highest point of 

 land In the world is Mount Everest, elevation 29,002 feet (L) ; the sum- 

 mit has not been reached by man, but ascents were made in 1922 

 within 1,700 feet of the top. The highest point of land in con- 

 tinental United States is Mount Whitney, California, elevation, 14,501 

 feet (L). The lowest point of land in the United States is Death 

 Valley which is over 300 feet below sea level. The deepest point 

 reached in deep sea soundings is 32,078 feet in the Pacific Ocean near 

 the Island of Mindanao, Philippine Islands (G). 



Highest Sea-waves — Waves ^of 50 feet in height (trough to crest) 

 and 220 feet in length (crest to crest) were encountered in the 

 North Atlantic Ocean on March 4, 1922 with a wind blowing 100 miles 

 per hour (F). The record difference between high and low tide oc- 

 curred in the Bay of Fundy in 1869 when the tide reached 53 feet 

 above low water (N). 



REFERENCES 



Authorities from which the preceding data were abstracted are 

 shown in the following table. The letters in brackets after each 

 item refer to the source of information, as, for example, (A) Milham, 

 Meteorology, etc. 



A Milham, Meteorology. 



B Humphreys, Physics of the Air. 



C Taylor, Australian Meteorology. 



D Monthly Weather Review. 



E Climatological Data Sheet, U. S. Weather Bureau. 



F Hydrographic Bulletin, U. S. Navy. 



G Websters Dictionary, 1922. 



H Black and Davis, Practical Physics. 



I Greely, American Weather. 



J McAdie, Principles of Aerography. 



K Scott, Voyage of Discovery. 



L Mill, The Realm of Nature. 



M Journal of the Royal Meteorological Society. 



N Wheeler, Waves and Tides. 



38 



