Sir James Jeans
The ' White Dwarfs ', about which Sir James Jeans is to speak this evening, have figured largely in the astronomy of the last few years. They are extreme in many ways. If we are asked which is the smallest of known stars, the hottest, or the most densely packed, the answer is in each case a white dwarf. A few years ago these, small, hot, dense stars were believed to be rare freaks, but it now seems quite possible that if we were asked which is the commonest type of star in the sky the answer ought again to be—'The White Dwarfs '.