30 



MASS. EXPERIMENT STATION BULLETIN 340 



Principal Data for the Leading Manufacturing Industries of Massachusetts 

 ALL INDUSTRIES, 1913 - 1933 



THOUSANDS 



800 



WAGL-EARNER5 



600 



AOO 



200 



12, 15 17 19 21 23 25 2T 29 31 33 



MILLIONS 

 OF DOLLARS 



8 00 



WAGES 



600 



400 



200 



13 15 17 19 £1 23 25 2.1 29 31 33 



