Physics

by Willis E. Tower; Thomas D. Cope; Charles H. Smith; Charles M. Turton

PHYSICS

TOWER, SMITH, TURTON,
AND
COPE

(See p.441)
Three-color Printing
Y. Yellow impression; negative made through a blue-violet filter. R. Crimson impression; negative made through a green filter. RY. Crimson on yellow. B. Blue impression; negative made through a red filter. YRB. Yellow, crimson, and blue combined; the final product. (Courtesy of Phototype Engraving Co., Philadelphia.)

PHYSICS

BY

WILLIS E. TOWER, M. SCI. (Univ. of Illinois)
HEAD OF THE DEPARTMENT OF PHYSICS, ENGLEWOOD
HIGH SCHOOL, CHICAGO

CHARLES H. SMITH, M. E. (Cornell)
HEAD OF THE DEPARTMENT OF PHYSICS AND ASSISTANT
PRINCIPAL, HYDE PARK SCHOOL, CHICAGO

CHARLES M. TURTON, A. M. (Syracuse)
HEAD OF THE DEPARTMENT OF PHYSICS, BOWEN
HIGH SCHOOL, CHICAGO