J.V. Durden

A study of heredity in man, showing how both good and bad characteristics are passed on from one generation to the next.

Few sights are more impressive than a working windmill, and there are plenty in this tribute to the sailed giants.

This documentary starts with the theory as proposed by John Dalton in 1808, and outlines the progress made during the nineteenth century bringing in Faraday's early experiments in electrolysis, Mendeleeff's Periodic Table, and ending with ideas of the size of molecules and atoms then current. (Part 1 of 6)

Early stages in the growth of the sea-urchin are presented in microphotography by transmitted and reflected light.

A brief essay on the ecology of a forest along the Laurentian Shield, in Quebec.

Mary Field and F Percy Smith create this whimsical look at the breeding habits and life cycle of frogs.

A study of heredity in man, showing how both good and bad characteristics are passed on from one generation to the next.

Few sights are more impressive than a working windmill, and there are plenty in this tribute to the sailed giants.

Few sights are more impressive than a working windmill, and there are plenty in this tribute to the sailed giants.

This documentary starts with the theory as proposed by John Dalton in 1808, and outlines the progress made during the nineteenth century bringing in Faraday's early experiments in electrolysis, Mendeleeff's Periodic Table, and ending with ideas of the size of molecules and atoms then current. (Part 1 of 6)

Early stages in the growth of the sea-urchin are presented in microphotography by transmitted and reflected light.

A brief essay on the ecology of a forest along the Laurentian Shield, in Quebec.

Mary Field and F Percy Smith create this whimsical look at the breeding habits and life cycle of frogs.

This film probes the perennial miracle of the growth of a seedling, the seasonal upsurge of life in a forest giant, and the mysterious alchemy of a single leaf. Presented in magnified dimension through time-lapse photography and animated diagrams, a maple leaf and segments of a tree serve to illustrate the physiological processes that go on in all plants.

This film probes the perennial miracle of the growth of a seedling, the seasonal upsurge of life in a forest giant, and the mysterious alchemy of a single leaf. Presented in magnified dimension through time-lapse photography and animated diagrams, a maple leaf and segments of a tree serve to illustrate the physiological processes that go on in all plants.

This film probes the perennial miracle of the growth of a seedling, the seasonal upsurge of life in a forest giant, and the mysterious alchemy of a single leaf. Presented in magnified dimension through time-lapse photography and animated diagrams, a maple leaf and segments of a tree serve to illustrate the physiological processes that go on in all plants.