Laboratory glassblowing : dealing with the fundamental operations of glassblowing and glass working techniques for laboratory workers / by L. M. Parr in collaboration with C. A. Hendley. Parr, Louis Melville. Glass blowing and working. TP859 .P32 542.2 PAL Includes index. London : G. Newnes, 1956. 1956. 1956 Text (vi),160 p. : eng