JOSEPH WESTLOCK. 341 



mounted at Cambridge, for a time, for his private use. With this 

 exception, his scientific labors had been exclusively in the way of the 

 higher mathematics, either as teacher or computer. It was not until 

 he was relieved from the work of routine, and became Director of the 

 Observatory at Harvard College, that he had an opportunity to develop 

 and manifest his remarkable mechanical ingenuity and genius for 

 invention. An ample and deserved tribute is paid to the memory and 

 the services of the two lamented Bonds (the father and the son), when 

 it is remembered that their lives, consecrated to astronomy, founded 

 the Observatory, and won for it the sympathy and support of tlie com- 

 munity. Affection for them, and respect for their disinterested zeal, 

 inspired the liberal endowments which strengthened its early growth. 

 Because the men were there, the institution was born and lived. The 

 buildings and equipments of the Observatory, under its first directors, 

 put to shame many similar establishments in Europe. The possession 

 of a magnificent I'efractor, equatorially mounted, approached by a skil- 

 fully devised observer's chair, and accommodated under an immense 

 dome which was moved with marvellous ease, contrasted favorably 

 with deficiencies in instruments and machinery at older observatories, 

 and gave to the one at Cambridge, at once, a name and a rank among 

 the best in the world. With delicacy and disinterestedness of feeling, 

 eminently characteristic of Mr. Wiulock, his first thought, on assuming 

 the duties of Director, was for the reputation of his predecessors, with 

 which the reputation of the Observatory was intimately associated. 

 As rapidly as the resources of the Observatory permitted, he provided 

 for the reduction and publication of their unfinished work. Tlius 

 the Annals of the Observatory have been enriched by a volume on 

 Sun-Spots, and others on a catalogue of Zone-Stars. Another is yet 

 to appear containing a catalogue of Polar and Clock Stars. 



But it was impossible for the Observatory to maintain its high 

 standing and remain stationary, while the old observatories elsewhere 

 were remodelled, refurnished, and prepared to start upon a new career ; 

 and young observatories, richly appointed, were springing up in both 

 hemispheres. The inventory of instruments, at the disposal of the 

 Bonds, comprised the large equatorial, a five-foot equatorial, a four- 

 foot transit-circle, a Bond clock and chronograph, two chronometers, 

 and a set of Lloyd magnetometers for obtaining the elements of tlie 

 earth's magnetism. During the nine years of Mr. Winlock's vigorous 

 administration, the insti-umental appliances of the Observatory were 

 strengthened in all directions. A seven-foot equatorial by Clark, 

 another Bond chronograph, a Bond standard-clock with break-circuit 



