Explained by Numerous Examples and Exercises; Adapted to the Capacity of Younger Students, and Designed for Academies and the Higher Classes of Common Schools
Being the Report on the Primula Conference Held at South Kensington, 1886, Together with a Report on the Orchid Nomenclature Conference, Held at Liverpool, 1886
Containing Maps of All the Stars from 1 to 6.5 Magnitude Between the North Pole and 340 South Declination, and of All Nebulae and Star Clusters in the Same Region Which Are Visible in Telesc