FIGURE 5. A in Collection management and study of microscope slides: Storage, profiling, deterioration, restoration procedures, and general recommendations

FIGURE 5. A. Glycerol-paraffin mount with spacers (arrowheads), probably some kind of modelling clay; made between 2000 and 2007 by Rückert. B, C. Glycerol mounts with metal spacers (B, arrowheads) and cavities because of evaporation of glycerol (C, arrowheads), sealed with a white varnish; early 1920s by Micoletzky. D, E. Pieces of epidermis and cuticle of nematomorphs; early 1930s by Heinze. Notice lack of coverslip (D) and coverslip fastened to slide with adhesive tape (E, arrowheads) and a small amount of a mounting medium. F. Unfinished histological sections still in paraffin, unstained, and without coverslip; early 1920s by Arndt. G. Specimen information inked on glass slide and covered with mounting medium and coverslips; before 1932 by Eckmann. H. Specimen information written with a "permanent" marker on glass side, partly wiped off during cleaning of slide with lab tissue; after 1974 by Kanev. I, J. Slides with self-adhesive labels; glued on back side of slide, and coverslips adhered with mounting medium to aluminum frame (I); mounted in Malinol between 1995 and 2004 by Schmelz (I) and in an unknown medium in 1996 by Erséus (J). K, L. Surface of dry borosilicate coverslip (K) and of wet sodalime glass slide (L) of same slide at same spot (note white crystal in mounting medium marked by asterisk). A-J: macro lens; K, L: DIC. Scalebars: A-J, 2 cm; K, L, 500 µm.