chapter ii. of the magnificent _Atlas of Representative Stellar
Spectra_, published in 1899, by Sir William and Lady Huggins conjointly, for which they were adjudged the Actonian prize of the Royal Institution. Sir William Huggins died on the 12th of May 1910.
See ch. i. of _Atlas of Stellar Spectra_, containing a history of the Tulse Hill observatory; Sir W. Huggins's pe...