| How Plants Reproduce |
1957 |
|
|
|
|
|
| How Seeds Are Scattered |
1957 |
Centron Films. |
|
|
|
|
| How Simple Machines Make Work Easier |
1960 |
Coronet |
200 ft. |
|
|
|
| How Solid is Rock |
1967 |
Encyclopaedia Britannica |
800 ft. |
|
|
|
| How Solid Is Rock |
1960 |
|
|
|
|
|
| How Solid is Rock? |
|
|
|
|
|
|
| How Sound Helps Us |
1964 |
|
|
|
|
|
| How Sunshine Helps Us |
1961 |
|
|
|
|
|
| How Supervisors Appraise Performance |
|
|
|
|
|
|
| How Sweet It Is: Sugar |
1978 |
|
|
|
|
|
| How the Animals Discovered Christmas |
1963 |
Coronet Instructional Films |
500 |
|
|
|
| How the Animals Discovered Christmas |
|
Coronet (CORT) |
|
|
|
|
| How the Body Moves I: The Muscles |
1968 |
|
800 ft. |
|
|
|
| How the Body Moves II: The Skeleton |
1968 |
BBC/Lawrie Lawler |
800 ft. |
|
|
|
| How the body uses energy |
1960 |
|
|
|
|
|
| How the Colonies Grew |
1970 |
Pictura Films |
|
|
|
|
| How the First Letter Was Written |
1976 |
|
|
|
|
|
| How the Historian Asks Questions |
|
|
12:00 |
|
|
|
| How the Historian Classifies Information |
|
|
12:00 |
|
|
|
| How the Historian Deals With Mindset |
|
|
12:00 |
|
|
|
| How the Historian Decides What Is Fact |
|
|
12:00 |
|
|
|
| How the Historian Proves A Hypothesis |
|
|
12:00 |
|
|
|
| How the Kiwi Lost His Wings |
1981 |
Churchill |
600 ft. |
|
|
|
| How the Movies Began |
1947 |
|
400 ft. |
|
|
|
| How the Vacuum Tube Works |
|
|
|
|
|
|
| How the West Was Lost |
|
|
12:00 |
|
|
|
| How the West Was Won |
|
|
12:00 |
|
|
|
| How the West Was Won (Part 2) |
|
|
|
|
|
|
| How the West Was Won, Honor Lost |
|
|
12:00 |
|
|
|
| How the Whale Got His Throat |
1970 |
|
300 ft. |
|
|
|
| How the Whale Got His Throat |
1970 |
|
|
|
|
|
| How They Filmed Grand Prix Part 1 |
|
|
12:00 |
|
|
|
| How They Filmed Grand Prix Part 2 |
|
|
12:00 |
|
|
|
| How They Lived Then: Eastern Seaport Town |
|
|
|
|
|
|
| How Things Dissolve |
|
|
|
|
|
|
| How Things Dissolve |
|
|
|
|
|
|
| How to Judge Facts |
1970 |
|
|
|
|
|
| How to Add Fractions |
|
|
|
|
|
|
| How to Add Fractions |
|
Modern Learning Aids |
|
|
|
|
| How to Be A Friend |
|
|
|
|
|
|
| How to Be A Friend |
|
|
|
|
|
|
| How to Be a Perfect Person in Just 3 Days |
1984 |
|
|
|
|
|
| How to Bend Light |
1961 |
|
|
|
|
|
| How to Bend Light |
1961 |
|
|
|
|
|
| How to Bend Light |
1961 |
Churchill Films |
400 ft. |
|
|
|
| How to Bend Light |
1961 |
|
|
|
|
|
| How To Bend Light |
1961 |
?Encyclopedia Britannica ebec |
|
|
|
|
| How to Build A Golf Swing (Part 1 of 2) |
1975 |
The National Golf Foundation |
600 |
|
|
|
| How to Build a Golf Swing (Part 2 of 2) |
1975 |
The National Golf Foundation |
600 |
|
|
|
| How to Build A Golf Swing Part 2 |
|
|
|
|
|
|