Collars for turkeys, [266]
Colter plow, [47]
Combine, horse-drawn, [241]
Condensed milk, [26]
Connelly, Joseph H., [320]
Cookie roller, [93]
Cooley creamer, [33]
Cooper, Minner J., donor, [259]
Corle, Andrew, donor, [410]
Corn, tools and machines for, [75], [80], [178]-[182], [190], [194], [212], [218], [221], [278], [377], [386], [397], [398], [402], [403]