LIEDER Microscopic preparations school series of D (addition of A, B and C), 50 Praep.

No. 750 School Set D for General Biology, Supplementary Set 50 microscope slides Histology of Man and Mammals Ciliated epithelium, in t.s. of fallopian tube of pig Tendon of cow, l.s. showing white fibrous tissue, stained for fibres and cells Heart muscle, human, t.s. and l.s., branched fibres with central nuclei and intercalated discs Lymph gland of pig, t.s. showing lymphoid tissue Esophagus of cat, t.s. with stratified squamous epithelium, muscular layers Stomach of cat, t.s. through fundic region showing gastric glands Large intestine (colon), t.s. special stained for the mucous cells Pancreas of pig, sec. showing islets of Langerhans Thyroid gland of pig, sec. showing glandular epithelium and colloid Adrenal gland of cat, t.s. through cortex and medulla Sperm of bull (spermatozoa), smear Motor nerve cells, smear from spinal cord of cow showing w.m. of motor nerve cells and their processes Cerebrum, human, t.s. of cortex showing pyramidal cells and fibrous region Human skin from palm, v.s. showing cornified epidermis, germinative zone, sweat glands Zoology Distomum hepaticum (Fasciola), the beef liver fluke, w.m. and stained for general study of internal organs Taenia spec., tapeworm, w.m. of mature proglottids Culex pipiens, mosquito, head and piercing sucking mouth parts of female, w.m. Culex pipiens, mosquito, head and reduced mouth parts of male, w.m. Cimex lectularius, bed bug, w.m. of adult specimen Cytology and Genetics Mitochondria, in thin sec. through liver or kidney, special staining technique Golgi apparatus, t.s. through spinal ganglion, special staining technique Chloroplasts, in leaf of Elodea or Mnium, special stained Aleurone grains, in sec. of Ricinus endosperm Storage, section of liver or kidney, vital stained with trypanblue to demonstrate storage in epithelial cells DNA in cell nuclei, demonstrated by Feulgen staining technique DNA and RNA, fixed and stained with methyl green and pyronine to show DNA and RNA in different colors Giant chromosomes from the salivary gland of Chironomus. Individual genes and puffs can be observed Human chromosomes, spread in the stage of metaphase, for counting chromosomes Meiotic and mitotic stages in sec. of crayfish testis. Nuclear spindles are present Maturation divisions in ova of Ascaris megalocephala, different stages, iron hematoxylin stained Cleavage stages in ova of Ascaris megalocephala, iron hematoxylin stained Bacteria and Diseased Organs of Man Escherichia coli, bacteria from colon, probably pathogenic, smear Gram stained Eberthella typhi, causing typhoid fever, smear from culture, Gram stained Tuberculous lung, t.s. of diseased human lung showing miliary tubercles in tissue Coal dust lung (Anthracosis pulmonum), t.s. of human smoker’s lung Liver cirrhosis of man caused by alcohol abuse, t.s. showing degeneration of liver cells Arteriosclerosis, t.s. of diseased human coronary artery showing sclerotic changes in the arterial wall Metastatic carcinoma (cancer) of human liver, t.s. Embryology Sea urchin development (Psammechinus miliaris), composite slide with two cell, four cell and eight cell stages Sea urchin development (Psammechinus miliaris), composite slide with morula, blastula and gastrula stages Frog embryology (Rana spec.), sec. trough the blastula stage showing the blastocoel Frog embryology (Rana spec.), sag. sec. through young larva in the tail bud stage, with primordia of organs Ecology and Environment Leaf (needle) of fir (Abies), two t.s. of leaves, healthy and damaged by environmental influences (acid rain) Leaf of beech (Fagus), two t.s. of leaves, healthy and damaged by environmental influences (acid rain) Bacteria from waste water, smear with many typical forms Botany Nostoc, blue green alga, filamentous colonies within gelatinous sheaths Desmids (Desmidiaceae), strewn slide of various species Sphagnum, peat moss, w.m. of leaf showing chlorophyll bearing and hyaline cells. Triticum, wheat, t.s. of stem of a gramineous plant with central pith and circular arrangement of bundles Salvia, sage, t.s. of a square stem with angular collenchyma The scope of delivery and price include one or two plastic containers for 25 specimens each. Additional storage boxes can be ordered separately.