Earthworm, c.s.
    Mitosis of animal cell, eggs of horse ascarid, sec.
    Frog embryo, cleavage stage, sec.
    Frog egg, two cell stage, sec.
    Dense connective tissue, rabbit Achilles tendon, sec.
    Skeletal muscle, dog diaphragm, L.s.c.s
    Motor neurons, ox w.m.
    Wall of stomach, dog, sec.
    Kidney, mice, l.s.
    Lymph node, rabbit, sec.
    Kidney with blood vessels injected, rat, sec.
    Ovary, cat, sec.
    Hydra, c.s. through ovary
    Leech, w.m.
    Mite, w.m.

c.s. – cross section
sec. – section
w.m. – whole mount
l.s. – longitudinal section
s.m - smear

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