"Practical Queen Rearing," book by Charles/Pauline Dublon (Welsh couple), includes an in-depth discussion of the SUBJECT line. Brushy Mountain Bee supplies in Moravian Falls NC usa (1-800-BEESWAX) was selling it in 1994 for $17.45 plus 2# shipping (send 4 their free catalog?). Bonne chance. Jack the B-man Ellicott City MD usa PS "It's a pleasure to give advice, humiliating to need it, and perfectly normal to ignore it."