— of Substances Resembling Celluloid, [158]
Properties of Amalgams, [85]
— of Concrete Blocks, Strength, [695]
Protecting Boiler Plates from Scale, [122]
— Cement Against Acid, [9]
— Stuffed Furniture from Moths, [425]
Protection for Cement Work, [162]
— for Oil Paintings, [488]
Protection of Acetylene Apparatus from Frost, [363]
Protective Coating for Bright Iron Articles, [496]