Agriculture and Forestry, Part III. Animal pests, symbiosis and soil life, 24 prepared microscope sl

Function and Applications

Agriculture and Forestry, Part III. Animal pests, symbiosis and soil life, 24 prepared microscope slides - - Root nodules of Alnus, with symbiotic bacteria - Spruce beetle (Cryphalus picea), larva t.s. - Wood with normal annual rings, t.s. - Wood with anomalous narrow annual rings caused by drought, t.s. - Bark with larval galleries of spruce beetle, t.s. - Pineapple-like gall on spruce caused by lice, t.s. - Gall nut on oak caused insects, t.s. - Acidophile soil bacteria, solution of heavy metals - Nitrite bacteria, formatting harmful nitrogenous substances - Root of beech with ectotrophic mycorrhiza, t.s. - Root of birch with partly endotrophic mycorrhiza, t.s. - Root of lupin with symbiotic nitrogen fixing bacteria - Netted venation, portion of rotted deciduous leaf - Charlock (Sinapis), t.s. of stem. Green manure plant - Soil bacteria (Bacillus megatherium), smear - Hyphae of root fungi, t.s. - Pollen grains of different kinds of grass - Mushroom (Xerocomus), mycelium - Root of willow (Salix), planting protecting against erosion - Earthworm (Lumbricus) t.s., causing soil improvement - Springtails (Collembola), w.m. - Mite from forest soil, w.m. - Constituents of humus soil - Constituents of peaty soil