Books were in demand and were multiplied.
Numbers multiplied by 0 are always equal 0.
Among the ruder or savage tribes they possess but one form; but the ingenuity of man has devised many inventions to increase his comforts; he has varied and multiplied the characters and kinds of domestic animals for the same purpose, and hence the various breeds of horses, cattle and dogs.
And similar records might be multiplied almost to any extent.
Thus all that was shocking in the barbarism of Africa was multiplied and intensified by this foreign stimulation.