Microscope slide - plants, botany - 1940-1950

This is a nice collection of 59 slides, preparation of botany, plants. On all slides and the box is the description (in Dutch). The description of the slides: Pellionia Daveauana, germ wheat grain, Rhoeo Discolor, Secale Cereale, Narcissus Poëticus, Cucurbita Melanospermum, Pyrus Communis, Ilex Aquifolium, Pinish Rad, Quercus, Sambucus Nigra, Iris Germanica, Vicia, Ginkgo Biloba, Magnolia Soulangeana, Solanum Tuberosum, Plantain. A photo has been taken of the first and last slides. Box size 19x30x4 cm. On the box: Microscopische preparaten.