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THE POPULAR SCIENCE MONTHLY.
disagreements the few parallaxes we possess have laid a good foundation a for a knowledge of the dimensions of at least the nearer parts of the universe.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/PSM_V47_D812_Wonders_of_the_night_sky_map_25.jpg/500px-PSM_V47_D812_Wonders_of_the_night_sky_map_25.jpg)
Map No. 25.
We find an interesting triple in ψ, the magnitudes of the larger components being four and a half and eight and a half, distance 30″. The smaller star has a nine-and-a-half-magnitude companion, distance 3″. A more beautiful triple is ι, magnitudes