We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
Eleventh Edition PHYSICAL SCIENCES
91
GROUP 101 (Continued) Physics and Mathematics
Sound Waves and Their Sources (1) Presents by animation detailed action of longitudinal waves shown in two dimensions in air.
(•29, 104, •A63, 186)
Sound Waves, Experiments in Physics (*4) Actual photography of sound waves, measuring lengths, etc. (©A30) Studies in Magnetism (1) Natural magnet, permanent magnet of steel, uses of electro magnet, etc. (©A30, A98)
Velocity (1) Elemental explanation of Einstein theory. (A64) Geometry (2) History of its origin; an interesting treatise. (A197) The Play of the Imagination in Geometry (1) Demonstration of the fundamental principles of geometry. («29, 189, •A63, 186)
(See also Groups 25, 69-72, 76)
PHYSIOLOGY, HEALTH and HYGIENE GROUP 102 EMBRYOLOGY
Development (%) Microscopic observation visualizing development of the fish embryo. (0A1O4)
Development of the Bird Embryo (1) Using the chick for early stages and the wren for last stage and hatching. (©57)
Gift of Life (4) Sketches the biology of reproduction from a very simple form to a human being. (©A13)
How Life Begins (4) Microscopic biological study of plants and animals ; filmed by George E. Stone. (©A35) Part I — How Life begins in protozoan ; yeast plant, geraniums,
sweet peas.
Part II — How Life begins in sea-urchin ; life story of swallow-tail butterfly.
Part III — Life story of frog. Part IV — Life story of chick and white rat. The Living World (4) Microscopic biological study. Sequel to How Life Begins. (©A35) Part I — Composition of protoplasm. Part II — Characteristic activities of living things. Part III — Adaptation of protoplasm to environment. Part IV — Cycles of life and meaning of heredity. Living Cell (1) The division and growth of single-celled organisms; yeast, amoeba, Paramecium ; many celled organisms ; hydra and flatworm ; tissue cells ; cell division. (©57) Mystery of Marriage (1) A biological study of plant and animal life.
(A98, 197)
Sexual Reproduction (%) Microscopic study; characteristic differences between sperm and germ cell of the Atlantic oyster. (©A104) The Science of Life (12, 1 reel each) Made under direction of the Surgeon General, U. S. Public Health Service. Covers general biology, communicable diseases and personal hygiene. (©A30) Part I deals with general biology ; Reel 1 — Protoplasm, the Beginning of Life ; Reel 2 — Reproduction in Lower Forms of Life ; Reel 3 — Reproduction in Higher Forms of Life ; Reel 4 — Interdependence of Living Things.
(See also Groups 93-4, 98-9, 103)
GROUP 103 ANATOMY and STRUCTURAL PHYSIOLOGY
Action of Human Heart (%) Animated diagrams of complete circulatory system; valvular action of human heart. (©A30)
Body Framework (1) Structure and growth of bone; function of the skeleton in giving support to the body, and furnishing points of attachment for muscles. (©57, 104)
The Blood (1) Study of blood and oxygen it carries. (©58)
The Blood ( % ) Illustrates the separation of plasma from blood cells ; protein and salts from plasma — staining cells — counting red blood corpuscles— how white blood cells reach the body tissue. (©57, 104)
Breathing (1) Importance of good lungs and action of diaphragm, breathing, lungs structure and function. (©57)