To anyone whose interest in gardening under lights was sparked back in 1957 by F. H. Kranz' Gardening Indoors Under Lights (Viking) this extends that material, introduces new developments and knowledge of the relation of light to growth and bloom, and incorporates gardening under lights with an already established program of indoor gardening. There may not be the same sense of discovery, but the facts are all here in greater detail and expansion for both the experienced and inexperienced gardener. Anyone will find useful general information on surer methods of starting seeds and bulbs indoors, on wintering outdoor plants safely, on solving vacation problems, etc. Specific plants are treated individually and there are close to 50 illustrations--both photographs and line drawings. Supplementary lists of sources of equipment, organizations and publications. A useful reference book in what is emerging as a recognized area of gardening.