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Picture of an aeroplane equipped for scattering sulphur over a corn field. The aeroplanes in full function, sending great clouds of sulphur that settle on the corn.
III. — Smuts of wheat and maize.
Pictures of wheat and maize afflicted by smuts. Projection of microscopic preparations showing the formation in various stages, of the clamidospores. Isolated clamidospores.
Their germination. Formation of sporides. Copulation between sporides. Nuclear evolution in the Ustilaginaceae. The diplophase is caused as a result of copulation between the sporides : it is formed by the mycelia living as a parasite growth in the tissues of the host until a promyceliam is formed by the clamidospores. Divisions of reductions of the nucleus to 2 m. chromosomites in the promocelia.
Methods of combattig wheat smut. The Jensen method.
Root rot of trees produced by Ar miliaria mellea. — Pictures of trees with armillaria melea. (The mulberry often has symptoms of progressive decay, due to an attack of this fungus).
The diseased plants will be pulled up to show the rot at the root and collar. A big root, isolated from the plant will be projected in considerable enlargement to show the black on the outer surface of the bark.
The latter will then be partly removed to show the fan shaped white patches of the subcortical mycelia.
Development of the fructifying bodies of the fungus.
Their structure. Dissemination of the spores.
Germination of the spores.
Pure culture of the Armillaria.
Preventive and curative methods.
In this number of our Review we have illustrated a typical example of a film on parasitology, chosing one made by the L. V. C. E. Institute. In view of the importance of the subject and the interest shown by both professional students and amateurs in this subject, the Institute will continue to publish in following numbers news of films illustrating parasitology, microcinematography and pure science, made by the leading producing firms of the world.