Learn about light, colours and the science of Chromatography.


THE mountain rises. What do we mean when we employ this form of words? Some mountains, we are told, have originated in an upheaval. But even if this particular mountain did, we never saw it and geologists are still disputing about HOW and WHETHER. S


IN the contemplation of the Aspect before him, what gave that aesthetic man the most immediate and undoubted pleasure was its colour, or, more correctly speaking, its colours. Psycho-Physiologists have not yet told us why colours, taken singly and a