"This anonymous and undated masonic handbook, The Complete Free Mason, or Multa Paucis for Lovers of Secrets, was published about 1763 or 1764. It resembles a Pocket Companion, except that it does not include the Charges or the General Regulations. Part I contains a historical account of Masonry prior to the Christian era; Part II the history of Masonry in Britain; Part III a List of Lodges; Part IV a collection of Masons' Songs. The history is more or less a condensed version of Anderson's Constitutions of 1738, but in certain respects it differs from Anderson in its account of the formation of GL. Parts II and III are reprinted in Leics. Reprints, vii. Bro Adams (AQC 1, 151) suggests that Laurence Dermott may have been the author of Multa Paucis, a suggestion which Bro. Lepper strongly contests (AQC 1, 178)" (Knoop & G. P. Jones, A Handlist of Masonic Documents).

In their book, The Genesis of Freemasonry, Knoop and Jones examine the account of the formation of the premier Grand Lodge as given in Anderson's Constitutions of 1738 and Multa Paucis.

Then there's an informative account on this subject in an article entitled "Notes on Some Eighteenth Century Masonic Handbooks" (AQC 50).

B. E. Jones briefly touches on it in Freemasons' Guide and Compendium also.

Anyway what is noteworthy about Multa Paucis is mainly its statement that the premier Grand Lodge was founded by six lodges rather than four. But Anderson's version (four lodges) is widely accepted. After all, Multa Paucis was published 46 or 47 years after the formation of the premier Grand Lodge, Anderson's second edition (1738) was also published long (21 years) after its foundation, though. No mention is made of Multa Paucis in UGLE's official history book, Grand Lodge 1717-1967.