108 



h. m. s. 

 Brought forward, — 02 09.01 



Reduction to the dome of the State Capital, — 04 



Dome of the State Capital is east, in longitude, of 



Toledo station, - - - — 02 09.05 



Longitude of Toledo observinc^ station, - -f 5 34 09.57 



Result — Longitude of the dome of the State Capital 

 at Columbus, Ohio, west of the meridian of Green- 

 wich, 5 32 00.52 



Equal, in arc, to .... 83° 00' 07". 8 



Latitude of this dome, as before given, - 39° 57' 43". 2 N. 



Verification of the Positions of Michigan City, Indiana., 

 AND Madison, Wisconsin. 



The approximate positions of these stations were given in our pre- 

 vious paper, primed in \"ol. VI. of the Society's Proceedings; the 

 first numbered as Station II., and the other as Station VI. See pp. 

 363 to 365, and 385 to 368 of that volume. 



We have since had opportunities for testing the results, then re- 

 ported, by more reliable observations, which we will now give. 



II. MICHIGAN CITY, INDIANA. 



Station. — The centre of the public square, bounded on the north 

 by Michigan street, on the south by Fourth, on the east by Franklin, 

 and on the west by Washington street. 



By a survey made with the theodolite and chain, — the true azimuths 

 of the courses being determined from four azimuths of Polaris, 2 by 

 direct observation, and 2 others by reflection from the liorizon of 

 quicksilver, on the 17th May, 1859, with the times by the sidereal 

 chronometer, — we find that this new station is S. 11° 15' 49" E., 

 (true) and distant 1717 feet from our station of Jime 21st, 1858. 

 Hence the reduction from the station of 1858 to that of 1859, at the 

 centre of the aforesaid public square is, in latitude, — 16". 64, and in 

 longitude — 4". 41 in arc, = Os.294 in time. 



From the centre of the public square, to the station where Captain 

 Andrew Talcott observed in 1833, as pointed out to us by Herman 

 Lawson, Esq., attorney at law, who was here at that time and still 

 resides here, is N. 12° 05' 25" W., (true) and the measured distance 



