...separated from each other by dark intervals, not to mention an orange and a very definite bright blue ray. The lithia exhibits one single red ray. Hence I hesitate...can distinguish the minutest portions of these two subitancesfroai each other with as much certainty, if not »юге, than any other known method. He...

...same physicist, after a striking description of the spectra of lithium and strontium, continues — " Hence I hesitate not to say that optical analysis...portions of these two substances from each other" with as much certainty, if not more, than any other known method." In these expressions the idea of " chemical...

...separated from each other by dark intervals, not to mention an orange and a very definite bright blue ray. The lithia exhibits one single red ray. Hence I hesitate not to say that optical analysis can distinguish tic minutest portions of these two substances from each other with as much certainty, if not more,...