The agriculture and forestry microscope slide sets provide close-up study of the harmful and beneficial effects of the environment and other organisms on plants found on farms or in the forest. Examine fungi that cause diseases; bacteria, parasites and environmental factors that harm crops; and the effects of animals, symbiosis and soil conditions. Each slide set includes a full-color brochure with corresponding pictures.
Agriculture and Forestry Slide Set III includes 24 microscope slides: • Acidophile soil bacteria, solution of heavy metals • Bark with larval galleries of spruce beetle, t.s. • Charlock (Sinapis), t.s. of stem. Green manure plant • Constituents of humus soil • Constituents of peaty soil • Earthworm (Lumbricus) t.s., causing soil improvement • Gall nut on oak caused insects, t.s. • Hyphae of root fungi, t.s. • Mite from forest soil, w.m. • Mushroom (Xerocomus), mycelium • Netted venation, portion of rotted deciduous leaf • Nitrite bacteria, formatting harmful nitrogenous substances • Pineapple-like gall on spruce caused by lice, t.s. • Pollen grains of different kinds of grass • Root nodules of Alnus, with symbiotic bacteria • 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 • Root of willow (Salix), planting protecting against erosion • Soil bacteria (Bacillus megatherium), smear • Springtails (Collembola), w.m. • Spruce beetle (Cryphalus picea), larva t.s. • Wood with anomalous narrow annual rings caused by drought, t.s. • Wood with normal annual rings, t.s.