Since you guys are finding this interesting, I'll add this additional article from 1920, on loading silica. Scott
Found this portion of a letter to my mom from the New Jersey Pulverizing Company with their letter head. I had mentioned in post #10 that she worked at this plant in Toms River (Bayville) as a dispatcher. The company HQ is in NYC, but the plant(pictured) is in Bayville. Scott