WILLIAM CRANCH BOND. 



229 



vard College. It still stands upon its original site at the south- 

 east corner of what are distinctively called the college grounds, 

 and is remembered by many Harvard graduates as the resi- 

 dence for a term of years of the Rev. Dr. A. P. Peabody. Its 

 cupola was placed upon it to accommodate one of Mr. Bond's 

 telescopes, and at that time was suitably domed. 



Mr. Bond's chief work at Cambridge for the first two or 

 three years was a continuation and extension of his observa- 

 tions for the Navy Department in regard to the earth's mag. 



FIG. 4. THE DANA HOUSE. First observatory of Harvard College. 



netism. He was assisted by his son, W. C. Bond, Jr., whose 

 death in 1842 was regarded as a loss to science. Renewed ex- 

 ertions were now made to secure an adequate observatory and 

 set of instruments. The site was purchased in 1841. A bril- 

 liant comet that appeared in 1843 furnished a favourable occa- 

 sion for raising a subscription. The best telescope that could 

 be produced in Europe, a refractor of fifteen inches aperture, 

 equatorially mounted, was ordered from Merz & Mahler, of 

 Munich, and ground was broken for a pier for it in the sum- 

 mer of the same year. In September, 1844, the instruments 

 were removed from the Dana House to the new observatory, 

 and Mr. Bond entered upon a series of observations for deter- 

 mining the latitude and longitude of the new station. 



