Publications for 08/1872

• The Pennsylvania railroad and Brooks Insulators
• L.G. Tillotson prepared a series of letters
• New superintendent elected for Bay State Glass Works
• The Pittsburg Western Union Office and Brooks Insulators
• Things Not Generally Known, insulators made of glass
• Pamphlet by David Brooks on Lightning Rods
• Extension of telegraph in Oregon uses Chester insulators
• [ad] Boston Bottle Works ad for Mason jars