Hidden worlds
National Geographic Society (U.S.)
Washington, D.C. National Geographic Society
c1981
Pocket contains a pamphlet, Far-out fun! (24 p.), a pair of 3-D glasses and a poster
Includes index
Bibliography: p. 103
Contents: Think small / by Edith Kay Pendleton -- Beyond earth / by Kathryn Allen Goldner and Carole Garbuny Vogel -- The inside story / by Catherine O'Neill -- Wider horizons / by Eleanor Felder -- More light on the subject / by Kathryn Allen Goldner and Carole Garbuny Vogel -- Catch all the action / by Catherine O'Neill -- Who discovers hidden worlds? / by Glenn O. Blough
Vision
Microscope and microscopy
Telescope
Radiography
Vision.
Microscope and microscopy.
Telescope.
Radiography.