Sentence:  In addition to the <WSD>method</WSD> described in the section above , chlorine and radiochlorine were prepared by the electrolysis of a * * f eutectic on the vacuum line , and by exchange of * * f with molten * * f . 
Meaning of the word marked with <WSD> tags:  a way of doing something, especially a systematic way; implies an orderly logical arrangement (usually in steps)