Page:Popular Science Monthly Volume 58.djvu/99

Rh condition was recognized on the 11th, and on the 12th a stroke of apoplexy proved fatal.

Professor Keeler married Miss Cora S. Matthews, at Oakley Plantation, Louisiana, on June 16, 1891. Of her great sorrow and of the grievous loss to the two children it would be futile to speak.

When the dangerous weakness of his heart was discovered by the physicians, Professor Keeler's main regret was that he would have to leave Mt. Hamilton and its opportunities in order to live at a lower altitude. It is known that he had planned his work with the Crossley reflector far into the future. A small spectrograph which he was most anxious to employ on certain interesting spectra was completed on the day of his leaving the observatory.

The absence of one so old in experience and so ripe in judgment will be seriously felt throughout his profession.