Educational film catalog (1936)

EDUCATIONAL FILM CATALOG 593.7-595.3 593.7 Hydrozoa Life of a freshwater polyp (hydra). lOmln 16-si-sd-apply 35-si-sd-f-apply 1938 VL 593.7 "This is a condensed and more elemen- tary treatment of the subject of the film 'Hydra' (listed in main catalog, class 593.7). It is a flrst-class film, excellently photo- graphed. . . The commentary deserves a special word of praise, giving just the right emphasis to the points which need stress- ing. . . Outstanding features are the photo- graphs and diagrams of the stinging cells, and the catching and digestion of the water flea. The film does not set out to give any details of cell structure beyond those that can be seen with the microscope from the outside." British film inst. sh Guide 594 Mollusks Mollusca, reel II. IR 16-si-$60; rent $3 Rutgers 594 Shown in accurate color against natural- istic settings are Aeolis, Elysla, Natica, Purpura, Aporrhais, Buccinum, and Mya. A surprising amount of action is revealed in these normally sluggish animals, and close-up photography of certain external details brings to the student a demonstra- tion of structure which might otherwise be missed. This film, and Mollusca, Reel I (1940, class 591.92), present a survey of mollusks found along the northern shores. Should be a useful supplement in senior high school and college biology courses sh-c Snail. lOmin 16-sd-$25; rent $1.50 1940 Bailey film serv. 594 ALSO AVAILABLE FROM 16mm: BdH Cal III Kan Mo "A microscopic close-up study of the common garden snail. . . EJxplains every phase of the existence of this interesting little animal. Supplementing the pictures themselves is a distinct commentary. There is no musical background. . . Close-ups and microscopic shots show the snail in minute detail. Even the four feelers, the eyes, and the tongue are easily visible. Indeed, the separate cells of the tongue are shown. The film demonstrates how the snail pre- pares for sleep, how he feeds, travels, climbs. Embryonic snails are shown, as well as many other tiny objects which would be invisible to the naked eye." Pro- ducer Jh-sh-c-adult 595.1 Worms Annelida: Echiurus. Nereis. IR 16-si-$60; rent $3 1939 Rutgers 595.1 ALSO AVAILABLE FROM 16mm: NEE FA NH Ohio Okla "Begins with a short section illustrating an unusual annelid, 'Echiurus,' but the ma- jor part is concerned with the common lab- oratory form 'Nereis'. . . The Nereis scenes are unusually striking, both in action and in color. All of the external features are shown in close view, particularly details of the head. One scene gives a full-frame front view of the prostomium being everted, showing the large jaws and the denticles lining the mouth. Burrowing and feeding activities are clearly shown." Producer sh-c Fasciola (the liver fluke). 21min 16-si-sd- apply 35-si-sd-f-apply 1938 VL 595.1 ALSO AVAILABLE FROM 16m,m: Ohio "This is a very good and complete ac- count, excellently photographed, and accom- panied with a lucid commentary. Among the points which deserve special mention are: (1) the demonstration of the structure of the animal by a series of superimposed diagrams, and an excellent use of pointers; (2) the way in which by frequent shots of the vertebrate and intermediate hosts irv their normal habitats, and of research work- ers dissecting those animals, the attention of the audience is always drawn to the size of the different stages and their inter- connection with one another; (3) the ques- tion of the economic importance of the liver fluke and methods of control is em- phasized; and (4) the life cycles shown in< diagrams are repeated just sufficiently to enable the mind to grasp the very compli- cated series of events; while the summary at the end of the film, rapidly running over the whole cycle, is very valuable from the teaching standpoint and makes clear the complete story. The only criticisms to be made are that the film does not make quite clear exactly how much damage is caused to the infected animal, nor the extent of its ravages to livestock in general, by the presence of the fluke, nor is it mentioned exactly how the inert cyst travels from the mouth to the liver of the vertebrate host. A teaching film for senior classes . . . and for university students of zoology, agricul- ture and medicine. Also of interest ta Natural History Societies." British film inst. sh-c Guide 595.3 Crustacea Arthropoda: the crustacea. 15min 16-si- * $60; rent $3 1940 Rutgers 595.3- ALSO AVAILABLE FROM 16mm,: Ohio Direction and photography by Earle B. Perkins, Balanus, Caprella, Craso, Hip- polyte, Homarus, and Pagurus serve to- illustrate various groups of crustaceans found along the rocky coast of Maine. The common barnacle sheds its integument, the skeleton shrimp shows its protective blending of form and color with the algal background, the prawns and lobster reveal decapod structure and activity and the amusing hermit crabs quickly enter new shells when deprived of their molluscan» homes. Excellent color, various magnifica- tions, and camera angles make this an im- portant film in the teaching of marine in- vertebrate zoology sh-c King crab, Limulus. 15min 16-si-$25; rent $2 Rutgers 595.3- ALSO AVAILABLE FROM 16mm: Ohio Photography of this subject is by Nor- man McClintock and Earle B. Perkins. The specimens were found on the New Jersey shore of Delaware Bay. King crabs are seen swimming on the top of the water. Then on the beach beside a group of these appears a clam ensis which pushes itself into the sand. That the king crab is more closely allied to spiders and scorpions than to the crab is pointed out. A group of them is seen on the beach preparatory to spawn- ing. A closeup of one and several shots of them in groups. A specimen is turned over and about and the external morphol- ogy, the locomotor and breathing move- ments are illustrated. We see the slipper limpet, crepidula, which attaches itself to the king crab. A colony of bryozoans is si - silent; sd • sound; f • inflammable; nf - safety; p • primary; ei • elementary; jh • Junior high; sh • senior high; 0 • college; trade - trade schools 75