A practical treatise on mechanical dentistry . Fig. i i. 44 MECHANICAL DENTISTRY. OXYHYDROGEN BLOWPIPE. No dental laboratory appliance for heating purposes has everbeen devised that has attracted so much attention, or elicited suchcordial and unreserved praise by expert manipulators, as thatinvented by Dr. J. Rollo Knapp, of New Orleans, La., and shownin Fig. 20. It is described as being to all intents and purposes an oxy-hydrogen blowpipe divested of the cumbersome paraphernaliausually accompanying the latter, and reduced to a practical size Fig. 19.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1903