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.…