| 5001 |
DINOSAURS |
5041 |
WINNING OF THE WEST |
| 5002 |
WEATHER |
5042 |
THE AMERICAN REVOLUTION |
| 5003 |
ELECTRICITY |
5043 |
CAVES TO SKYSCRAPERS |
| 5004 |
ROCKS AND MINERLAS |
5044 |
SHIPS |
| 5005 |
ROCKETS AND MISSILES |
5045 |
TIME |
| 5006 |
STARS |
5046 |
MAGNETS AND MAGNETISM |
| 5007 |
INSECTS |
5047 |
GUNS |
| 5008 |
REPTILES AND AMPHIBIANS |
5048 |
THE MOON |
| 5009 |
BIRDS |
5049 |
FAMOUS SCIENTISTS |
| 5010 |
OUR EARTH |
5050 |
OLD TESTAMENT |
| 5011 |
BEGINNING SCIENCE |
5051 |
BUILDING |
| 5012 |
MACHINES |
5052 |
RAILROADS |
| 5013 |
THE HUMAN BODY |
5053 |
TREES |
| 5014 |
SEA SHELLS |
5054 |
OCEANOGRAPHY |
| 5015 |
ATOMIC ENERGY |
5055 |
NORTH AMERICAN INDIANS |
| 5016 |
THE MICROSCOPE |
5056 |
MUSHROOMS, FERNS AND MOSSES |
| 5017 |
THE CIVIL WAR |
5057 |
THE POLAR REGIONS |
| 5018 |
MATHEMATICS |
5058 |
COINS AND CURRENCY |
| 5019 |
FLIGHT |
5059 |
BASIC INVENTIONS |
| 5020 |
BALLET |
5060 |
THE FIRST WORLD WAR |
| 5021 |
CHEMISTRY |
5061 |
ELECTRONICS |
| 5022 |
HORSES |
5062 |
DESERTS |
| 5023 |
EXPLORATIONS AND DISCOVERIES |
5063 |
AIR AND WATER |
| 5024 |
PRIMITIVE MAN |
5064 |
STARS |
| 5025 |
NORTH AMERICA |
5065 |
AIRPLANES AND THE STORY OF FLIGHT |
| 5026 |
PLANETS AND INTERPLANETARY TRAVEL |
5066 |
FISH |
| 5027 |
WILD ANIMALS |
5067 |
BOATS AND SHIPS |
| 5028 |
SOUND |
5068 |
THE MOON |
| 5029 |
LOST CITIES |
5069 |
TRAINS AND RAILROADS |
| 5030 |
ANTS AND BEES |
5070 |
ECOLOGY |
| 5031 |
WILD FLOWERS |
5071 |
THE ENVIRONMENT AND YOU |
| 5032 |
DOGS |
5072 |
EXTINCT ANIMALS |
| 5033 |
PREHISTRORIC MAMMALS |
5073 |
SNAKES |
| 5034 |
SCIENCE EXPERIMENTS |
5074 |
? |
| 5035 |
WORLD WAR II |
5075 |
? |
| 5036 |
FLORENCE NIGHTINGALE |
5076 |
FOSSILS |
| 5037 |
BUTTERFLIES AND MOTHS |
5077 |
? |
| 5038 |
FISH |
5078 |
? |
| 5039 |
ROBOTS AND ELECTRONIC BRAINS |
5079 |
? |
| 5040 |
LIGHT AND COLOR |
5080 |
? |