LABOR BULLETIN OF THE COMMONWEALTH OF MASSACHUSETTS. 1907. JANUARY TO JUNE, NOS. 45 To 50. WRIGHT & POTTER PRINTING CO., STATE PRINTERS, 18 POST OFFICE SQUARE. INDEX. (BULLETINS Nos. 45 To 50.) The following index comprises the articles in the Labor Bulletins of the months of January to June, In Bulletin No. 28 was printed an index covering Bulletins Nos. 1 to 28 inclusive; in Bulletin No. 34 |