The SciencesSundials and their Construction--VILines of Declination; Signs of the ZodiacBy Margaret Walton Mayall, R. Newton Mayall on September 1, 1934AdvertisementABOUT THE AUTHOR(S)Recent Articles by Margaret Walton MayallSundials and their ConstructionSundials and Their ConstructionSundials and their ConstructionRecent Articles by R. Newton MayallSundials and Their ConstructionSundials and their ConstructionSundials and Their Construction--V