SURVEY FOR THE CANAL. 



407 



memoranda, and receiving explanations, and the result 

 of the vi^hole is as follows : 



The measurements began on the side of the Pacific 

 Ocean, and were carried over to the Lake of Nicaragua. 

 ^ The chain was twenty-five varas in length, each vara 

 being thirty- two and a half inches English, and I give 

 the levels as taken from Mr. Bailey's survey. 



At a distance of 



Ghain& Elevation in Eng. feet. 

 17.60 8.93 



34.37 12.04 



52.38 7.99 



67.50 16.82 



80.95 26.90 



103.06 38.12 



120.07 52.62 



134.94 La Desperansedera de la Quebrada la Palma. Bo- 

 ring 3^ feet, loose sand ; 66 feet, clay, not very 



firm 66.12 



149.61 76.12 



164.71 94.66 



185.34 132.95 



201.50 Panama, water on the surface. Boring 11 feet, 



gravel ; 24 feet 5 inches, slate-stone 201.50 



221.87 223.00 



226.14 214.235 



235.48 241.35 



253.63 First limestone rock 284.20 



264.28 356.770 



273.18 389.700 



280.26 425.95 



287.01 461.525 



288.97 519.391 



292.99 Top of the Palma, and summit-level. Boring 5 



feet, yellow clay ; 59 feet, stone, soft and loose. 



No water 615.673 



299.05 570.157 



300.53 Second limestone rock 506.300 



314.11 460.891 



317.05 ^ 442.858 



319.27 443,899 



