320 



KANSAS CITY REVIEW OF SCIENCE. 



PLATE VIII, 



1. Vernal Equinox. 



2. Summer Solstice. 



3. Autumnal Equinox. 



4. Winter Solstice. 



5. Vernal Equinox. 



The points 1, 3, and 5 are in the plane, 

 points are either above or below it. 



All other 



B, M <& H.Effg's. K. C. 



