18 



WRITINGS OP JOSEPH HENRY. 



[1824- 



No. V. — Table of Ascents and Descents from Lake Ontario along the Osioego 

 River, through the Tally Lakes, and down the Tloughnioga River to the 

 Susquehanna. 



Koute. 



Miles.- 



Feet. 



Lake Ontario, at mouth of Oswego river 



Outlet of Onondaga lake 



Erie canal at Syracuse 



Tully lakes, town of Tully 



Forks of the streams near Homer village 



Chenango forks 



Junction of Chenango and Susquehanna, at 

 Binghamton 



7 

 18 

 12 

 29 



10 



28 

 35 

 53 

 65 

 94 



104 



rises 180 



rises 38 



rises 795 



falls 98 



falls 149 



falls 111 



231 

 361 

 399 

 1194 

 1096 

 947 



836 



No. VI. — Table of Ascents and Descents from Little Sodiis Bay, on Lake 

 Ontario, to Owego, on the Susquehanna, along Cayuga Lake and the 

 valley of Owego Creek. 



Koute. 



Miles. 



Feet. 



Little Sodus bay, on Lake Ontario 



Montezuma, on the Erie canal 



Outlet of Cayuga lake 



Along the lake to its head 



Summit between Cayuga lake and Owego 



creek 



Susquehanna, at Owego 



6 

 36 



6 

 20 



31 



37 

 73 



79 

 99 



rises 49 



rises 7 

 level 



rises 594 



falls 185 



231 

 380 



387 

 387 



981 

 796 



The elevation of Owego, according to table No. 2, is 804 

 feet, which differs eight feet from that given in the above 

 table. This small discrepancy is owing to the circumstance 

 of the elevations in these two tables being the results of sur- 

 veys entirely independent of each other, and which intersect 

 at Owego, after a circuit from the Hudson, of more than 300 

 miles. Table No. 2, also intersects with No. 4, at Bingham- 

 ton, and with No. 7, at Newtown. At the former place the 

 difference was only the fraction of a foot, and at the latter 

 less than two feet. These facts show with what precision 

 measurements of this kind can be made, and what reliance 

 may be placed on the correctness of the elevations of the 

 several points given in these tables. 



