The absorption index decreases by about 1% with a 1°C temperature increase. In liquid ammonia, the absorption index is proportional to the total metal concentration. In methylamine, the absorption index at the band maximum is also proportional to the total metal concentration, but deviations occur at shorter wavelengths, with absorption increasing faster than Beer's law. The ratio of absorption indices at 650μμ and 530μμ increases with metal and reaction product concentrations and possibly temperature. These observations are explained by the hypothesis that color arises from electrons combined with the solvent. In ammonia, electron dissociation is nearly complete, while in methylamine, un-ionized metal contributes to increased absorption. Electron solvation in methylamine is incomplete and decreases with temperature. Langmuir's study on gas adsorption on glass, mica, and platinum surfaces shows that adsorption occurs in a transition layer between liquid and vapor states. Adsorption is a physical phenomenon, not a chemical one, and involves molecules condensing on surfaces and later evaporating. Adsorption results from the time lag between condensation and evaporation. Adsorption on solid surfaces is similar to that on liquids, with a single molecular layer. Experiments showed that adsorbed films on solids do not exceed one molecule in thickness. Adsorption on amorphous surfaces like glass has an indefinite number of elementary spaces, but stoichiometric relations may still exist. Adsorption on crystalline surfaces has different elementary spaces, leading to steps in adsorption. Adsorption on amorphous surfaces may have complex stoichiometric relations. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on amorphous surfaces may have complex stoichiometric relations. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in stepsThe absorption index decreases by about 1% with a 1°C temperature increase. In liquid ammonia, the absorption index is proportional to the total metal concentration. In methylamine, the absorption index at the band maximum is also proportional to the total metal concentration, but deviations occur at shorter wavelengths, with absorption increasing faster than Beer's law. The ratio of absorption indices at 650μμ and 530μμ increases with metal and reaction product concentrations and possibly temperature. These observations are explained by the hypothesis that color arises from electrons combined with the solvent. In ammonia, electron dissociation is nearly complete, while in methylamine, un-ionized metal contributes to increased absorption. Electron solvation in methylamine is incomplete and decreases with temperature. Langmuir's study on gas adsorption on glass, mica, and platinum surfaces shows that adsorption occurs in a transition layer between liquid and vapor states. Adsorption is a physical phenomenon, not a chemical one, and involves molecules condensing on surfaces and later evaporating. Adsorption results from the time lag between condensation and evaporation. Adsorption on solid surfaces is similar to that on liquids, with a single molecular layer. Experiments showed that adsorbed films on solids do not exceed one molecule in thickness. Adsorption on amorphous surfaces like glass has an indefinite number of elementary spaces, but stoichiometric relations may still exist. Adsorption on crystalline surfaces has different elementary spaces, leading to steps in adsorption. Adsorption on amorphous surfaces may have complex stoichiometric relations. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on amorphous surfaces may have complex stoichiometric relations. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps. Adsorption on surfaces with multiple elementary spaces occurs in steps