Unit 3

Unedited whale footage taken by Roger Payne.

Unedited whale footage taken by Roger Payne.

Unedited whale footage taken by Roger Payne.

Overexposed and poor-quality dupe of unedited whale footage from NYZS Researcher Roger Payne with a noticeable light streak running through the picture frame.

Negative print of white whale footage, presumably underwater since the whale occupies the full frame.

Closeup of footage of the birds in the new World of Birds exhibit.

Close-ups of snakes inside the World of Darkness.

"A discussion of the rampant waste of natural resources in cities, woodlands, and farmlands, and of the pollution of rivers and the air. Compares the 'progress' achieved through wasteful methods and through intelligent conservation techniques. Shows how man's intelligence can be channeled to plan for progress wisely"--Worldcat.

English-language sound print. "An explanation of how nature produces topsoil from the basic raw materials of rock, water, air, and sunlight. The film emphasizes the necessity for an organized conservation pgroam to save our natural reosurces. Includes animated drawings. For high school students and adult groups"--1948 Catalog of Copyright Entries.

Portuguese-language silent print. "Presents the story of how our forests grow, describing the various elements that contribute to the mature forest. Explains forest zones in relation to temperature and rainfall and defines the phrase 'the climax forest' in terms of the speices that predominate when the forest is mature. For junior and senior high school and adult groups"--1949 Catalog of Copyright Entries.