Miscellanies. 



385 



3. Graduation of the Mohawk and Hudson 

 Hail Road ; communicated by S. DeWitt 

 BltOodgood, of Albany. — The account which 

 was published in the last number of this Journal, 

 of the Hudson and Mohawk Rail Road, was in- 

 tended as a popular illustration of an important 

 subject, rather than a minutely accurate descrip- 

 tion of all its parts. In consequence, the char- 

 acter of the graduation of the road, was, among 

 other things given only in general terms. 



The annexed profile* is accurately drawn, on 

 a horizontal scale of 200 chains to an inch, and 

 on a vertical scale of 800 feet to an inch, and 

 is furnished by Mr. Jervis, with his usual kind- | ^ ^ 



ness. 



1. From the Canal to the foot of the inclin- 

 ed plane, is 26 chains — level, 



2. Inclined plane, ascent 1 foot in 18 — 31 

 chains. Total rise, 115 feet. 



3. Level, 3 miles 42 chains. 



4. Descent, 1 in 450 — 2 miles 11 chains, 

 fall 25 feet. 



5. Level, 1 mile 40 chains. 



6. Descent to centre of road, 1 in 225 — 1 

 mile 53 chains, fall 62.50. 



7. Level, 1 mile 7 chains. 



8. Descent, 1 in 270 — 3 miles 12 chains, 

 fall 61.50. 



9. Level to inclined plane, 3 chains. 



10. Inclined plane, descent 1 in 18 — 51 

 chains, 185.01 feet. 



1 1 . Foot of plane to Hudson river, 12 chain® 

 The total length is 14 miles 48 chains. 

 Since the setting in of winter, the locomotive 



engines have been withdrawn, and horses are 

 used to drag the cars over the road. The 

 wheels of the engines were found to slip during 

 the very cold weather, but the snow that fell. 



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* Reduced one half, to bring it within the page.- 



Vol. XXI.— No 2. 49 



-Ed. 



