- 1. Testis of mouse, t.s. showing Leydig's cells Lieder_4472d
- 2. Meiotic (maturation) stages in testis of mouse, sec. iron hematoxyline stained after Heidenhain Lieder_Ma103f
- 3. Leydig's cells in testis of mouse, t.s. Lieder_Ma2574d
- 4. Testis of mouse, t.s. showing spermatogenesis Lieder_76016d
- 5. Meiotic (maturation) stages in smear from testis of mouse, specially stained after Feulgen * Lieder_Ma1031f
- 6. Testis of mouse, t.s. showing spermatogenesis Lieder_Ma461d