Sentence:  Let us first see how the matter of this letter-numbering or <WSD>psephology</WSD> stands generally. The authors think that both the Greek and Hebrew method derive from a common source. But there is no proof of this; indeed the weak point in the whole of this exposition is that they entirely neglect the historical side of the matter and give no references. 
Meaning of the word marked with <WSD> tags:  An ancient Greek method of numerology, similar to gematria.