Boros István (szerk.): A Magyar Természettudományi Múzeum évkönyve 5. (Budapest 1954)

Boros, I.: The new exhibitions of the Hungarian National Museum - Museum of Natural History

is illustrated by the use of the most significant Hungarian and foreign works on mycology, and other photographic documents. For the display of the others,, preparations, graphs, photographs, and small models are used. In the section dealing with penicillin and streptomycin, photographs show their production,, and a sample its employment in therapeutics. A special table shows what fungoid species cure what disease. Our agricultural fungus pests are illustrated by original dry and wet preparations, enlarged microscopical drawings and colored paintings, showing, at the same time, the possibilities of defence. The injurious fungi to silviculture are displayed by photographs and original dry preparations. In the case exhibiting the protection of industrial woods, original samples of timber and mine propwood expose the ravages of fungi and the effects of fight against them, together with a rich photographic material. Poisonous and edible fungi are presented by mostly plaster preparations. A special picture material compare easily confusable poisonous and edible mushrooms. Their production and culture is chiefly illustrated by pictures. Main Theme V. A. Natural plant associations: 1. The development and succession of plant associations = a diorama with sematical solution, with waxen plant preparations, above and on three sides with explaining diagrams of instances on the succession of lakes, swamps, marshy meadows and marsh-forests ; algae in connection with lakes. 2. Alkaline plant associations = dried plants with complete roots, pressed between glass sheets, photographs, diagrams, etc. 3. From drift sands to steppe fields = illustrations as above. 4. The plant associations of dolomite rocks = as above. 5. Hornbeam-and-oak forests = as above. 6. Beechwoods = as above. 7. Scotch pines = as above. 8. Inundation groves and oak forests of the plains = as above. B. — 9. Grasslands and meadow culture : meadow types, connection of cropland and hay production, artificial meadows and water economy control == maps, segments, maquette reliefs ; diagrams, hay samples, photographs. 10. Pasture husbandry : alkaline, sandy and hilly pastures, their improvement,, prevention of soil erosion, afforestation on pastures and grasslands = illustrations as above. 11. Silviculture: production areas and forest types, connections of forest types with timber production, increase of timber production, alteration of stock, output area mapping, natural renovation, sand binding by afforestation,, afforestation of barren lands, planted forests. = Illustration as above, and wood samples. The operative execution of the exhibition, effected according to the above themes, takes, of course, a considerable period of time, allowing even for our relatively rapid pace of work. We have completely finished and opened to the public the material of the Main Themes II, III, and IV, in the middle of the past year. Preponderantly of didactical demands, but also from the standpoint of satisfying the claims of practice, we saw it proper to work out these first. The introducing and completing themes are being worked out now, to be opened but in the first half of 1955. As an introduction to the already displayed three parts, a huge standing tableau illustrates the family tree of flowering plants, according to the most modern views, on a circular dial system ; whilst the laying cases in front of these show the fossils of flowering plants living now, with an accompanying picture