| BODY DEFENSES AGAINST DISEASE |
1937 |
Encyclopaedia Britannica Films Inc |
10 min |
|
|
Sound |
| DIGESTION OF FOODS |
1931 |
Encyclopaedia Britannica Films Inc |
10 min |
16mm |
|
Sound |
| FOODS AND NUTRITION |
1940 |
Encyclopaedia Britannica Films Inc |
11 min |
16mm |
|
Sound |
| Heart And Circulation |
1937 |
Erpi Picture Consultants Inc. |
1 reel |
16mm |
B&W |
sound |
| HEREDITY |
|
Encyclopaedia Britannica Films Inc |
10 min |
16mm |
|
Sound |
| NERVOUS SYSTEM |
|
Encyclopaedia Britannica Films Inc |
10 min |
16mm |
|
Sound |
| Reproduction Among Mammals |
1937 |
Erpi Classroom Films, Inc.; Encyclopedia Britannica |
4:00 |
16mm |
|
sound |
| THE MECHANISMS OF BREATHING. |
1936 |
ERPI Classroom Films Inc. |
10 min |
16mm |
|
sound |
| The work of the kidneys. |
1940 |
Encyclopaedia Britannica Films Inc. |
375 |
16mm |
B&W |
sound |