If you’ve spent any time at Lowell’s Gallagher Terminal, you have undoubtedly noticed the large brick smokestack with the name “HOOD” painted on it towering over the adjacent brick building. Neither the name nor the building have anything to do with Hood’s Dairy. Instead, they mark what was once the largest patent medicine manufacturing plant in Lowell, the Charles I. Hood Company. As these excellent photos by Tony Sampas make clear, the building has endured numerous other uses since the demise of the patent medicine business.