Not only did he operate with great financial constraint but he was also constantly ignored by sociologists of his time. This pioneering work won a gold medal at the exposition where these charts were showcased. What a beautiful set of charts. Worth learning from and seeing in detail. I was gutted by the chart that showed how dramatically Black population increased after civil war. To me that was the sign that a lot of violence / death impacted the enslaved people. So much pain hidden in one chart.