compounds which render the exposed parts to a more or less extent impervious to heat. Many different formulas have been discovered which accomplish the purpose, but the principle remains unchanged. The formula set down by Albertus Magnus was probably the first ever made public: the following translation of it is from the London Mirror:
Take juice of marshmallow, and white of egg, flea-bane seeds, and lime; powder them and mix juice of radish with the white of egg; mix all thoroughly and with this composition annoint your body or hand and allow it to dry and afterwards annoint it again, and after this you may boldly take up hot iron without hurt.
"Such a paste" says the correspondent to the Mirror, "would indeed be very visible."
Another early formula is given in the 1763 edition of Hocus Pocus. Examination of the different editions of this book in my library discloses the fact that there are no fire formulas in the second edition, 1635, which is the earliest I have (first editions are very rare and
