15733. Plant traps (10:25)

Date:
1931
Summary:
Pictures carnivorous plants, which have the unusual characteristic of entrapping and digesting insects and other small animals. Shows how the pitcher plant lures insects to its trap, where they drown. The enfolding of insects by the leaf tentacles of the sundew is presented by means of time-lapse photography.

15734. Seed dispersal (10:55)

Date:
1931
Summary:
Shows ways in which seeds of plants are scattered in order to insure propagation of the species: dispersal by wind, transportation by animals, and forceful propulsion from the seed case. Describes the anchoring methods of germination by clamping, hooking, adhesion, and corkscrew motion. Considers various means by which seeds are disseminated; how they anchor themselves to the ground to facilitate germination; and how they protect themselves. Demonstrates the dispersal of seed plants by wind, transportation by animals, and propulsion from seed plants by wind, transportation by animals, and propulsion from seed cases. Describes anchoring methods by clamping, hooking, adhesion, and corkscrew motion. Portrays various natural devices for protection while sprouting.

15735. Mazurek (Mazurka) (03:50)

Date:
1930?
Main contributors:
Paweł Anhalt (1910-?)
Summary:
Performed by Enriqueta Somarriba, Piano.

15736. Mazurek (Mazurka) (02:50)

Date:
1930
Main contributors:
Henryk Cylkow (1866-1945)
Summary:
Performed by Enriqueta Somarriba, Piano.

15737. Oh darling! (17:13)

Date:
1930
Main contributors:
Stephen Roberts, Jack White, Al Thompson, Sidney Bracey, Eva Thatcher, John Litel, Addie McPhail, Norman Peck, Nancy Dover
Summary:
Series: Jack White talking comedy

15738. Tin (17:05)

Date:
1930
Summary:
Shows opencast mining, sluicing, and bucket dredging in tin mines in the Malay States; tin as it is shipped to the United States; and the processes of making tin plate, tin cans for food containers; and various tin-base alloys.