To help speculations about the contents of the upcoming secons Mosaic box set of 1950's Vanguard manistream jazz sessions, I compiled a list of 10" and 12" LPs of the series. It is an expansion of the list from the Mosiac website plus my researches in the Lord Discography. Titles with an * are in the first box; my specualtions about the contents of the second are marked with + - all by Mel Powell, the Ruby Braff & Elis Larkins duets, Sir Charles Thompson, Bobby Henderson, Ronnell Bright, and