Standard cotton mill practice and equipment, with classified buyer's index (1918)
National Association of Cotton Manufacturers, National Association of Cotton Manufacturers. Year book of the National Association of Cotton Manufacturers · Boston : The National Association of Cotton Manufacturers · leaf 173
HORIZONTAL RETURN TUBULARBOILERS constructed according tothe rigid reciuirements of the Massa-chusetts Board of Boiler Rules. … VERTICAL TUBULAR BOILERS All the Iiest features of both Manniniiand straight shell types—minimums])ace per horse power, designed forthe higher steam i)ressures.Superior construction.Improved tire door opening.