Sentence:  If it is <WSD>assumed</WSD> that the formula given by Lodge of * * f , cosec 2lc applies , the pressure difference along the major axes can be calculated from the angle of inclination of the major axis , and from this the interfacial tension can be calculated . 
Meaning of the word marked with <WSD> tags:  take to be the case or to be true; accept without verification or proof