498 Miscellaneous Intelligence. 
of compensation, smallness of secondary error, and regularity of 
secondary error, the author says that the steel and the palladium 
tometer during the years 1879-1882, by Epwarp C. PIcKERING, 
Director, aided by Arthur Searle and Oliver C. Wendell, Assis- 
tants in the Observatory, pp. 327-512. Cambridge, 1885.—The 
uiar 
subject of investigation for the summer of 1885, with advice, 
which will be sent to all desiring it on addressing Professor 
. is, Secretary of the society, Cambridge, Mass., together 
with instructions and blanks for records. The council of the 
society asks the assistance of members and observers, and of all per 
sons interested in this investigation, not only in keeping records a 
particularly in extending the observers in their neighborhood. 
Van Bemmelen.—In the last number of this Journal, on pas® 
422, Van Beneden is a typographical error for Van Bemmelen. 
