Box of 15 preparations. Composed by:
- 4431e Hydra, freshwater polyp, t.s. with ectoderm and endoderm
- 4432d Carabus, ground beetle, entrails
- 4433c Salivary gland of cat, t.s.
- 4434c Cat esophagus, t.s. 4435d Fundic stomach of cat, t.s. 4436c Small intestine of cat, t.s. routine staining
- 4437f Small intestine, t.s. injected blood vessels
- 4438d Human appendix, t.s.
- 4439c Large intestine of cat, t.s.
- 4440c Pig liver, t.s.
- 4441d Insect Malpighian tubules, t.s.
- 4442c Primordial kidney (mesonephros) of frog, t.s.
- 4443c Posterior kidney (metanephros) of rabbit, t.s.
- 4444d Mouse kidney with pelvis, l.s.
- 4445f Mouse kidney, t.s. injected to show storage
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