264 C. Abbe—Toial Kelipse of the Sun of 1869. 
It may be seen, with some difficulty, by the help of an indue- 
tion coil and Leyden jar; or even by simply charging a Ley- 
den jar with an old fashioned electrical machine, and discharg- 
ing 1t in a darkened room. The spark must be, at least, an 
inch in length. 
Hanover, Feb. 9, 1872. 
Art. XXXIV.— Observations on the Total Eclipse of the Sun of 
1869; by CLEVELAND ABBE, Director of the Cincinnati Ob- 
servatory, Assistant in the Office of the Chief Signal Officer, 
ashington. 
the eclipse expedition by Mr. T. G. Taylor of Philadelphia. 
A short notice of the principal features noted by myself was 
sent at once to the eta of the Astronomische Nachrichten, 
but has not yet been published, and I therefore take the liberty 
of restating, through your Journal, the simple phenomena that 
I then saw. 
_ Our station was at Sioux Falls City (formerly Ft. Dakota), 
in the southeastern corner of Dakotah Territory, latitude 44, 
longitude 97°, elevation about 1,500 feet above sea level, in the 
midst of an extended plateau. 
