Mt Ix.liK <n.' tilt bu md dlup. It to 

 iit-ot tlk Ixiitoin m^ide tht bar, tlitj. 



sideimg the qut^t 

 h( bottom Itself CO 



7 ; 'Hit tlii- ratio could a])pl}, in the case ot ^^pl^ea^al, 



a- the f////evf/<rv of le^ el between the bar and the 



'-Mnn, i. ('oncerned, since the latter mu'^t be pre- 



'"■ -li: il;ir to the bar in its matennK irid '-tnirlme 



'• n-i lit, however, continue to (1(1111110 th( (H-f of 



' . II .1--. the risinjr would contiiuu imiiim - m nid 



!!•;,, lly break through, foiniii _ t ii l-j ni Tie 



-■■iH'-(M cut above its source niigl t liii ilh iin i< -' ^f> 



' ' ' \t«'nt curroponding to the diftertnce ot ^jutitic lh. Mt\ 



iiie craters of mudlurnps have been sounded to the de} th of 

 -■i feet, but no precaution? were u>ed to insure rcachnu the 

 •'actual maximum depth. In the bonims made foi the i ^uikH 

 ;;7 of a lighthouse on the South^^e.? Pi- b^ Mi A V Am. 

 (the record of wliieh was courteou-h fc^v a<U 1 to i - 1 i 

 ^^n^ineer Dept.). a stratum so soft that the ni_ u k ^ W 



^ ;'!*-;ini of Muter which "filled tlie pip 



-'- <'onld therein- be raised 24 

 '-column; and this, con^dcn 



'"'■li (ones are built ui) otf th<^ mouth- , , 



^ futthisisael(.se calculation, m en it tlu diti upon ^^huh 

 n i t^f ^^"' '^^'^^"^^^^ admi.Hble in the fonn T h n . <^^^ « n t ( m 

 ^"^the frequon. y and enei-v with ^^hlch the uphtaMUL^ to.ce 

 c£'7Pl^^l^'^ith the fact tliat when a mudlump n-o- m the 

 qS r ''' ^''' '''''^^^ ^-ulfering denudation to the extent re- 

 T^^ for the 1 vcakintr througli of the mud it moie gene rally 

 "^^^es a silti.. ,,p ,. tK, ^.|^,„-„,i ,eems to me to indicate that 

 * Humphreys and Abbot s Kept , p 446 



