AUTHORS
- WILLIAM J. MILLER
- HIPPOLYTE GRUENER
- A. RUSSELL BOND
- D. W. HERING
- LOOMIS HAVEMEYER
- ERNEST G. MARTIN
- ARTHUR SELWYN-BROWN
- ROBERT CHENAULT GIVLER
- ERNEST INGERSOLL
- WILFRED MASON BARTON
- WILLIAM B. SCOTT
- ERNEST J. STREUBEL
- NORMAN TAYLOR
- DAVID TODD
- CHARLES FITZHUGH TALMAN
- ROBIN BEACH
ARRANGED IN SIXTEEN VOLUMES WITH A HISTORY OF SCIENCE, GLOSSARIES AND A GENERAL INDEX
ILLUSTRATED
VOLUME SIXTEEN
P. F. COLLIER & SON COMPANY
NEW YORK
Copyright 1922