Subject ASC0000cxh
The Intellectual observer.
v.7 (1865), Page 447 (1865)
Harvard University, MCZ, Ernst Mayr Library
BHL Page 39464591
Keywords
Vision spectroscopes internal reflection right-angled prism glsss refraction geometry prism glass spectroscope reflection spectroscope design prisms optics Spectroscopy index of refraction angles sides right triangle angle angle of reflection physics double reflection light manufacture technology