564 The Genesis of Double Stars 
In the sketch which I have endeavoured to give of this fascinating 
subject, I have led my reader to the very confines of our present 
knowledge. It is not much more than a quarter of a century since 
this class of observation has claimed the close attention of astrono- 
mers; something considerable has been discovered already and there 
seems scarcely a discernible limit to what will be known in this field 
a century from now. Some of the results which I have set forth may 
then be shown to be false, but it seems profoundly improbable that 
we are being led astray by a Will-of-the-Wisp. 
