Walter Henry Voskuil

1892

• Agstone used in Illinois in 1944
• A geography of minerals
• Agricultural limestone distribution in 1932
• Agricultural limestone distribution in 1933
• Agricultural limestone distribution in 1935
• Agricultural limestone distribution in 1936
• Agricultural limestone distribution in 1937
• Agstone used in Illinois in 1945
• Agstone used in Illinois in 1946
• Agstone used in Illinois in 1947
• An economic study of fuels in manufacturing
• Bituminous coal movements in the United States