1: Compound microscope 2: Small solar microscope with rotating mirror 3: Simple microscope with illuminating lens 4: Prism for demonstration of totel reflection 5: Two glass cones to demonstrate the reflection of the totel 6: Glass ball for demonstration of spectral colors 7: Rotating biconvex lens on wooden frame 8: Camera lucida after Wollaston 9: Reflecting telescope according to Gregory 10: Reflecting telescope according to Gregory