Illustration comparing the fundamental units of measure 1 cubic yard and 1 cubic meter.
Samuel Hamilton, PH.D. School Arithmetic (Philadelphia: 20th Century Publishing Co., 1907) 311
2400×1145, 535.7 KiB
1024×488, 69.9 KiB
640×305, 33.5 KiB
320×152, 12.6 KiB