Set of 25 slides for teaching biology:

Amoeba E
Hydra with bud E
Fasciola (liver fluke) E
Human blood smear
Artery and vein TS
Lung VS
Ileum TS
Ovary TS
Testis TS
Euglena E
Spirogyra E
Mucor, conjugation E
Zea stem TS
Zea (maize) root TS
Mnium, archegonia VS
Mnium (moss) antheridia VS
Helianthus leaf TS
Helianthus stem TS
Helianthus (sunflower) root TS
Allium (onion) root apex LS
Dryopteris (fern) prothallus E
Cucurbita (marrow) stem TS
Marchantia, thallus, antheridia VS
Marchantia, thallus, archegonia VS
Marchantia (liverwort) developing sporogonium VS