Author:
Michael George Mulhall (1836-1900)
Pictogram, used to represent data by icons proportional to a number
Mediaitems:
Mulhall pictogram image, Mulhall pictogram image, steam power (730 x 457; 52K), Man, animal and machine pictogram, Google Books: Mulhall's Dictionary of Statistics, Mulhall pictogram image, railways (726 x 456; 58K)
Category:
Statistics & Graphics