Small amnt of wear on spine. Very Good condition for age.

Produced and approved by noted authorities, these books answer the questions most often asked about science, nature and history. They are presented in a clear, readable style, and contain many colorful and instructive illustrations. Readers will want to explore each of these fascinating subjects and collect these volumes as an authentic, ready-reference, basic library.

5001 DINOSAURS
5002 WEATHER 5003 ELECTRICITY
5004 ROCKS AND MINERALS 5005 ROCKETS AND MISSILES 5006 STARS
5007 INSECTS
5008 REPTILES AND AMPHIBIANS 5009 BIRDS
5010 'OUR EARTH
5011 BEGINNING SCIENCE 5012 MACHINES 5013 THE HUMAN BODY 5014 SEA SHELLS 5015 ATOMIC ENERGY 5016 THE MICROSCOPE 5017 THE CIVIL WAR 5018 MATHEMATICS 5019 FLIGHT 5020 BALLET 5021 CHEMISTRY 5022 HORSES 5023 EXPLORATIONS AND
DISCOVERIES 5024 PRIMITIVE MAN 5025 NORTH AMERICA 5026 PLANETS AND
INTERPLANETARY TRAVEL 5027 WILD ANIMALS 5028 SOUND
5029 LOST CITIES 5030 ANTS AND BEES 5031 WILD FLOWERS
5032 DOGS
5033 PREHISTORIC MAMMALS 5034 SCIENCE EXPERIMENTS 5035 WORLD WAR II
5036 FLORENCE NIGHTINGALE 5037 BUTTERFLIES AND MOTHS 5038 FISH
5039 ROBOTS AND
ELECTRONIC BRAINS 5040 LIGHT AND COLOR
5041 WINNING OF THE WEST 5042 THE AMERICAN
REVOLUTION
5043 CAVES TO SKYSCRAPERS 5044 SHIPS
5045 TIME
5046 MAGNETS AND MAGNETISM 5047 GUNS
5048 THE MOON
5049 FAMOUS SCIENTISTS 5050 OLD TESTAMENT 5051 BUILDING 5052 RAILROADS 5053 TREES
5054 OCEANOGRAPHY
5055 NORTH AMERICAN INDIANS 5056 MUSHROOMS, FERNS AND
MOSSES
5057 THE POLAR REGIONS 5058 COINS AND CURRENCY 5059 BASIC INVENTIONS
5060 THE FIRST WORLD WAR 5061 ELECTRONICS