231 



The longitudes and latitudes of the American places of observation, as far 

 as they can be determined from a reduction of these and former American 

 observations, have been furnished by Messrs. Walker and Kendall, as follows : 







Lon. 



ritude from 



Longitude west 



Place of Observation. 



N. Latitude. 



Philad. Obs'y. 



from Greenwich. 





o ' " 





in s 



h m s 



Boston State House 



42 21 22.7 



E. 



16 24.77 



4 44 17.13 



,, Paine's House 



42 20 56 



E. 



16 25.10 



4 44 16.80 



Dorchester, Bond's private Obs. 



42 19 15 



E. 



16 24.09 



4 44 17.81 



Southwick, Holcomb's ,, 



42 41 



E. 



9 24.83 



4 51 17.07 



Yale College, New Haven 



41 17 58 



E. 



8 51.00 



4 51 50.90 



City Hall, New York 



40 42 40 



E. 



4 37.54 



4 56 4.36 



Brooklyn, Blunt's private Obs'y 



40 42 



E. 



4 41-90 



4 56 0.00 



Nassau Hall, Princeton College 



40 20 50 



E. 



2 3-70 



4 58 38.20 



Alexander's House ,, 



40 20 56 



E. 



2 4-00 



4 58 37.90 



Philadelphia High School Obs'y 



39 57 8 





* o. 



5 41.90 



,, State House 



39 56 57.9 



E. 



2-86 



5 39.04 



Washington, Capitol 



38 53 23 



W. 



7 24.10 



5 8 6.00 



,, Marine Obs'y 



38 53 31 



W. 



7 24.18 



5 8 6.08 



Hudson Observatory 



41 14 37 



w. 



25 5.56 



5 25 47.46 



Dover, Ohio 



40 30 52 



w. 



25 14.02 



5 25 55.92 



The details of the computations on which these results are based, are too 

 extensive for the limits of this Report. The separate results for the longitude 

 of the Capitol, on account of its importance as being our prime meridian, are 

 here appended. 



