10 slides

1 - Frog, morula, l.s. with macro- and micromeres
2 - Frog, blastula. l.s. shows blastocoel
3 - Frog, gastrula, sagittal l.s. shows germ layers, dorsal lip, yolk plug
4 - Frog, neurula, t.s. showing primordium of notochord, entoderm with primary intestinal cavity
5 - Frog, early tail bud stage, t.s. with neural tube, notochord
6 - Frog, early tail bud stage, sagittal l.s. with primordium of brain, intestine, segmentation of mesoderm
7 - Frog, hatching stage, t.s. through region of head or gills
8 - Frog, hatching stage, t.s. through region of midbody
9 - Frog, young tadpole, t.s. through head
10 - Frog, young tadpole, t.s. through thorax or abdomen