... ?? P'Ottero,. I UTLER'S CHEMICAL MARKING INK, 13] REQUIRING NO PREPARATION. Thornas Butler, Chemist, 4, Cheaplide, Saint Paul's, London; Baines & Newsome, Leeds; and all Chemists and Stationers. N. B.-T. B. begs to caution the Public against using some of the New Inks for Marking Linen without a Preparation. many of which are prepared without reference to Chemical Principles, and cannot stai.d ...