88 
reversals on the image of the threads reflected from mercury 
in the nadir. He had re-determined the value of the level 
divisions, had removed some serious discordances arising 
from a faulty construction of the level, and had completed 
tables for the more convenient reduction of the observa-_ 
tions. 
This series of observations he intended to continue for 
several years, but an overruling Providence willed other- 
wise. His last observation was on the 8th of July, 1863, 
not sixteen months after the first. Happily he was favored 
with an able and skilful collaborator in Professor WILLIAM 
Harkness, and found a worthy successor. The series is 
continued by Professor Newcoms, than whom none is 
more competent to carry out the plans of his lamented 
associate, with all the success that scientific ability or ear- 
nest devotion can insure. 
Professor Newcoms has investigated the probable error 
of Hupparp’s observations of a Zyre, and finds that of a 
single observation to be but 0.155. 
In the early part of the year 1849, it was my privilege 
to become personally acquainted With Professor HusBaRD, 
and to begin a friendship which knew no cloud until the 
last sad severance of all earthly ties. For his affectionate 
solicitude in time of sickness, his sympathy and support in 
evil days, his cordial aid in difficulty, and his encouragement 
in all good works,—a debt is due to his memory which 
words cannot express, and which, alas! this life affords no 
opportunity of repaying. 
Without Hunsarp’s cordial approval, the plan of the 
Astronomical Journal would probably not have been carried 
into execution ; certainly it would not, at the time when it 
was actually begun. He aided it in every way,— by the 
promise of investigations for its eolumns—a promise amply 
