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M 



PAPERS. 



358 



OvCs 



To enable the Society to make tliefe furveys, levels, ^,.. 

 the merchants in Philadelphia generoufly fubfcribed near 

 two hundred pounds. 



The firft place propofed to be viewed, was the ground 

 between the tide waters of Apoquiniminck and Bohemia, 

 marked AB, m the annexed map (plate VII.) and John Lu- 

 kens, Efq. Surveyor-General, John " " 



V, 



Seller 



J 



I 



iilicot 



Matthevv' 



,^., . ^. , - - - -q^Hres, Meffrs, Thomas 



Giipm, Richard Sittiforth, Wliliam Killen, John Stapler, 



of Pennfylvania, and WilHao) Rurofey, Efq. of Maryland, 



were appointed a committee for this fervice, May c th 1 760 

 who having performed the fame, their report, fiened by the 

 three firft named gentlemen, was given in tothefociety Tune 

 I Qth 1769, fetting forth, " Thattheyhadvicwedtheground 

 aforefaid,_ taken the levels, furveyed the diflance, and cfTaycd 

 a calculation of the expence, which would attend the cut- 

 ting acanal in that place, which they were of opinion mio-ht 

 be executed with locks for the fum of forty thoufalid 

 pounds* Pennfylvania money. 



" The depth of earth from the Iiigheft ground to the le- 

 vel of navigation being very great, they declined making 

 any eftimate of what the coft would be, to make a clear 

 paflage from river to river, without locks, judgino- it an 

 undertaking beyond our prefent abilities." *^ 



The whole length of the ground where this canal is pro- 

 pofed, from tide to tide, is 5 miles 107 perches. They 

 found the waters in the Head Branch of Bohemia about 



eighteen feet below the furface of thehigheft ground, through 

 which thecanal muft go, and the water in the Head Branch 



of Apoquiniminck, about twenty-fix feet below the fame. 



The tide waters arc fixty-fix feet below the higheft <Tround.' 

 They found that for making a lock navigation^(under 

 the above circumftances) 208805 cubic yards of earth muft 

 be removed, that 10,260 perches of ftone wall would he 

 neccffary for fccuring the banks of the canal; that three 

 mills muft be purchafed that ftand in the way of the exe- 

 cution of the plan, and that fix locks muft be ereded- al 



Vol. I. 



Zz 



which 



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