1876.] 



105 



[Lesley. 



CXIII. Lehigh and Lackawanna B. B. 



The elevations on the Lehigh and Lacliawanna R. R., wore furnislied 

 by Mr. Charles Brodhead, President of tlie Company, who says, "Our surveys 

 carry us into tlie Wind Gap; and tlie liigliost point on tlie Turnpike, intlie Gap, 

 we found to be 738 feet above Bethlehem, or 978 feet above tide." The road runs 

 as far as Steuben, 15 miles. 



a With Lehigh and Susquehanna R. R. at Bethlehem, on the north side of the 

 Lehigh River. 



CXLV. Lehigh Valley R. B. 



The levels on the Lehigh Valley R. R. were copied from a list furnished by 

 Mr. Robert H. Sayre, Chief Engineer and General Superintendent, Lehigh Val- 

 ley R. R. 



The datum is Mean Tide, Delaware River, three feet being added for Ocean 

 Level in the second column. 



Ifote on the Lehigh Canal Levels. 



By a printed list of levels in the possession of Mr. George Ruddle, of Mauch 

 Chunk, it appears that there is a rise in the 

 Lower grand section of Slackwater Navigation, from the Delaware 



River to Mauch Chunk (46 miles), of 360'.87 



Upper grand section, Mauch Chunk to Wright's Creek (26 miles), of . 599'.83 



Upper grand section, Wright's Creek to Stoddart's Ville ( miles), 



of 336'.00 



Adding to these figures, for the height of Bixler's Rift, Delaware 



Canal, above low tide in Delaware River • . . . . 160.40 



we get the following heights of the Lehigh Slackwater System : 



At Mauch Chunk, 360.87 + 160.40 = 521.23 



At Wright's Creek, 521.23 + 599.83 = 1121.10 



AtStoddart'sVille, 1121.10 + 336= 1457.10 



a 60' above Delaware River, Junction with Central R. R. of N. J., Morris and 

 Essex R. R., Belvidere and Delaware R. R. 



PROC. AMER. PHILOS. 60C. XVI. 97. N 



